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Sleep-talking

Sleep-talking, also known as somniloquy, is a parasomnia defined as the production of speech or vocalizations during sleep without the speaker's awareness or subsequent recollection. These utterances can range from simple, unintelligible sounds or mumbles to complex, coherent sentences and even emotional monologues, occurring in both non-rapid eye movement (NREM) and rapid eye movement (REM) sleep stages. Typically benign and non-disruptive to the sleep-talker, it may nevertheless disturb co-sleepers due to its audibility. Somniloquy is one of the most prevalent sleep disorders, affecting about 5% of adults regularly and up to 50% of young children at least occasionally (with less than 10% regularly), with lifetime prevalence reaching as high as 66%. It shows no significant gender differences in occurrence and tends to diminish with age, though it can persist or emerge in adulthood. The condition often co-occurs with other parasomnias, such as or night terrors, particularly in NREM-related episodes. The of sleep-talking remains incompletely understood but involves a combination of and environmental triggers. Twin studies indicate substantial , with monozygotic twins showing higher concordance rates than dizygotic twins, suggesting genetic factors contribute significantly to its liability. Common precipitants include emotional stress, , fever, consumption, and certain medications, which may lower the arousal threshold during sleep transitions. Associations have also been noted with underlying conditions like , , and other issues; somniloquy itself rarely requires treatment unless it signals a more serious disorder. Improving —such as maintaining a consistent and reducing stimulants—can mitigate episodes in affected individuals.

Definition and Characteristics

Definition

Sleep-talking, also known as somniloquy, is a characterized by vocalizations during in which the individual remains unaware of the activity and typically has no subsequent recollection of the episode. Somniloquy is classified as a that can occur during both non-rapid (NREM) and rapid () , though the majority of episodes take place during light NREM (stages 1 and 2). It is often regarded not as a standalone disorder but as a common sleep-related behavior within the broader category of , which encompass undesirable or abnormal events arising from . The basic mechanism underlying sleep-talking involves partial arousals from , during which vocal activity emerges without achieving full , allowing fragmented speech or sounds to occur while the remains in a transitional state between and . The term "somniloquy" derives from the Latin words somnus (meaning "") and loqui (meaning "to speak"), and it was first documented in during the 19th century, with early references appearing in dictionaries and clinical descriptions around the 1840s.

Clinical Presentation

Sleep-talking, or somniloquy, manifests through audible vocalizations during sleep, ranging from simple mumbles, grunts, and single words to full phrases, sentences, or even extended monologues. These utterances are often incoherent or nonsensical, with approximately 50% being incomprehensible , while comprehensible speech may follow grammatical structure but frequently includes negative, exclamatory, or profane content. Episodes typically last from a few seconds to under 30 seconds, though they can occasionally extend to several minutes, and occur without the individual's awareness or recollection upon awakening. Such episodes usually happen sporadically, with many individuals experiencing them 1 to 4 times per night, though frequency is higher in children. Accompanying physical signs are minimal and subtle, including silent lip or mouth movements, muffled speech, eye fluttering, or minor body shifts, but without full awakening or significant motor activity. These manifestations are often associated with partial arousals from sleep. The characteristics of sleep-talking vary by sleep stage. In non-rapid eye movement (NREM) sleep, particularly lighter stages or during arousals from deeper sleep, vocalizations tend to be mumbled, fragmented, or limited to short phrases, reflecting less structured brain activity. In contrast, during rapid eye movement () sleep, speech is often more coherent and structured, potentially incorporating full sentences or emotional tones linked to vivid . Frequent sleep-talking episodes may contribute to sleep fragmentation for the individual, though they rarely lead to significant daytime impairment or require intervention in isolation, as the condition is generally benign. However, the vocalizations can disrupt the sleep of bed partners, potentially causing secondary issues like for them.

Etiology

Causes

Sleep-talking, or somniloquy, arises primarily from disruptions in normal sleep architecture, where incomplete transitions between sleep stages—particularly from non-rapid eye movement (NREM) to rapid eye movement (REM) sleep or wakefulness—lead to unintended vocalizations. These physiological disruptions manifest as blurred boundaries in arousal states, allowing partial activation of speech-related neural pathways during sleep without full consciousness. Environmental triggers play a significant role in initiating episodes by lowering arousal thresholds and exacerbating sleep instability. Sleep deprivation fragments sleep cycles, increasing the likelihood of vocal outbursts during unstable NREM stages, while fever elevates body temperature and disrupts , promoting parasomic behaviors. Similarly, alcohol consumption suppresses REM sleep initially but causes a , heightening vocal activity upon withdrawal during later sleep phases. Neurological factors likely involve dysregulation in mechanisms controlling and speech suppression during transitions. This imbalance reflects incomplete suppression of centers during transitions. Certain medications contribute by altering physiology, notably antidepressants like selective serotonin reuptake inhibitors (SSRIs), which enhance and in REM sleep, thereby provoking vocalizations. Sedatives, such as , can similarly induce parasomnias by destabilizing NREM architecture and promoting incomplete awakenings. Recent post-2020 underscores sleep-talking's ties to nocturnal fragmentation and dream content. A 2022 study found that sleep-talking episodes correlate with increased intra-sleep , indicating fragmentation as a core mechanism, while also linking them to diminished emotional intensity in dreams, suggesting altered processing of affective experiences during sleep.

Risk Factors

Sleep-talking demonstrates a notable , with familial patterns observed in a significant portion of cases. Studies indicate that children of parents who experience sleep-talking are substantially more likely to develop the condition themselves, with twin research showing higher concordance rates among monozygotic twins compared to dizygotic ones. estimates from these twin studies range from 35% to 50%, underscoring a moderate to strong genetic influence on susceptibility. Psychological factors play a key role in predisposing individuals to more frequent episodes. Elevated levels of , anxiety, and have been linked to increased occurrence of sleep-talking, as these conditions can disrupt normal sleep architecture and heighten thresholds during . For instance, individuals with disorders such as (PTSD) show a higher prevalence of parasomnias, including sleep-talking. Age represents a critical , with sleep-talking peaking during childhood due to the immaturity of the . Approximately 50% of children aged 3 to 10 years experience episodes, often tied to developmental stages of regulation, while prevalence drops sharply to about 5% in adults after . This decline reflects maturation of neural pathways that stabilize states. Lifestyle elements further exacerbate vulnerability to sleep-talking. Irregular sleep schedules, such as those from or , can destabilize circadian rhythms and promote partial arousals conducive to episodes. Consumption of or substances like , even in moderation, interferes with sleep continuity and may trigger occurrences, as alcohol suppresses REM sleep initially but leads to rebound effects later in the night. A history of recent , particularly causing fever, temporarily heightens risk by altering temperature and patterns. High fevers are associated with prolonged or more intense sleep-talking episodes, often resolving once the underlying illness subsides. Underlying sleep disorders, such as , are associated with increased risk by causing sleep fragmentation.

Epidemiology

Prevalence

Sleep-talking, or somniloquy, is a common with a lifetime estimated at nearly 67% in the general population, based on large-scale surveys incorporating self-reports and partner observations. This figure aligns with other epidemiological data indicating that 60-65% of individuals experience at least one episode over their lifetime. However, frequent occurrences—defined as weekly or more—are less common, affecting approximately 5% of adults. These estimates derive from questionnaire-based self-reports and partner observations from community cohorts. Prevalence is notably higher in children than in adults, with about 50% of children under 13 years old reporting at least occasional sleep-talking, often confirmed through parental observations in pediatric cohorts. This rate drops significantly with age, reaching around 5% for frequent episodes in adults over 30, as evidenced by longitudinal studies tracking persistence from childhood. A 2010 longitudinal study of children aged 6-11 years found a point of 22.3%, with the condition persisting into in approximately 46% of cases. There is no significant gender difference in the occurrence of sleep-talking across populations, with rates being roughly equal between males and females in both children and adults. Overall prevalence trends have remained stable over decades, with consistent findings from studies spanning the to the present. Underreporting is likely, however, due to the condition's often unnoticed nature, as it typically requires an observer and many episodes occur without full awakening or recall.

Demographic Variations

Sleep-talking, or somniloquy, exhibits notable variations across age groups, with prevalence peaking in childhood and declining thereafter. Approximately 50% of children aged 3 to 10 years experience sleep-talking at least once per year, while fewer than 10% do so daily. This rate is particularly high in young children and adolescents, where up to 66% of individuals may report at least one lifetime episode. In contrast, prevalence drops significantly in adulthood to around 5%, and it is even lower among the elderly, reflecting a general age-related decrease after adolescence. Regarding gender, sleep-talking occurs at similar rates in males and females overall, with no significant differences observed in children. However, some evidence suggests a slight male predominance among adults. Hormonal influences, such as those during or , have been hypothesized to contribute to minor variations in females, but empirical data remain limited. Data on ethnic variations are sparse, with studies in children showing no significant differences in between Caucasian and Hispanic populations. Similarly, no clear associations have been established with or geographic location, such as urban versus rural settings, though broader sleep disturbances may be influenced by environmental stressors in these contexts. Further research is needed to elucidate these demographic patterns.

Diagnosis

Methods

Diagnosis of sleep-talking, or somniloquy, primarily relies on clinical history gathered from and, if available, their bed partner or family members who have witnessed the episodes, in accordance with the (ICSD-3) criteria, which include recurrent verbalizations during sleep without awareness or recall, not better explained by another condition. Reports typically detail the nature of vocalizations, such as mumbling, coherent speech, or shouting; the timing relative to sleep onset or awakenings; frequency of occurrences; and the patient's lack of awareness or recall upon waking. These accounts are essential for initial assessment, as sleep-talking episodes are often sporadic and not perceived by the individual. Polysomnography (PSG), an overnight conducted in a setting, can provide objective verification of sleep-talking, particularly when clinical history suggests the need to rule out other sleep disorders. During PSG, multiple physiological parameters are monitored, including (EEG) to assess brain waves and stages, (EMG) for muscle activity, and audio recordings to capture vocalizations in real time. Video monitoring is often integrated to correlate sounds with behavioral observations, allowing clinicians to determine if episodes occur during non-rapid eye movement (NREM) or rapid eye movement () . This comprehensive recording helps confirm sleep-talking while providing data on associated sleep architecture disruptions. For individuals who experience infrequent episodes or prefer non-invasive options, home monitoring offers a practical alternative to laboratory . Bed partners or patients can use simple audio or video recording devices, such as apps or dedicated cameras, placed in the bedroom to document vocalizations during natural environments. Wearable devices with audio sensors may also track sounds alongside movement or , facilitating the capture of episodes without disrupting daily routines. These methods are particularly useful for assessing frequency and context in real-world settings, though they lack the precision of PSG for sleep stage analysis. Questionnaires play a supportive role in quantifying sleep-talking severity and frequency, often integrated into broader evaluations. Standardized tools, such as those from the (AASM), include targeted questions about observed vocalizations, their intelligibility, and impact on sleep quality, enabling self- or proxy-reporting for initial screening. While no universally validated instrument exists solely for sleep-talking, these assessments help track patterns over time and guide decisions for further testing. Emerging advancements since 2022 incorporate (AI) for automated audio analysis, enhancing detection efficiency in both clinical and home settings. AI algorithms process overnight audio to identify speech patterns indicative of sleep-talking, distinguishing them from ambient noise or with improving accuracy through models trained on large datasets. For instance, transformer-based models have shown promise in segmenting vocal events during sleep, potentially reducing reliance on manual review and enabling scalable screening. These tools are still investigational but represent a shift toward objective, non-contact diagnostics.

Differential Diagnosis

Sleep-talking, or somniloquy, must be differentiated from nocturnal seizures, particularly those associated with , where vocalizations are often stereotyped and repetitive, such as sudden screams or fixed phrases, in contrast to the variable and contextually diverse speech typical of somniloquy. In nocturnal seizures, episodes occur frequently, nearly nightly, and may include hypermotor behaviors or automatisms, whereas somniloquy events are irregular and lack such motor components. Other parasomnias, such as , can present with disoriented vocalizations during partial awakenings from non-REM sleep, but they are distinguished by prominent , slow responses, and potential motor activity like thrashing, unlike the isolated verbal output in somniloquy. Similarly, REM behavior disorder involves vocalizations alongside complex dream-enacting movements, such as kicking or punching, which are absent in pure somniloquy and occur specifically during REM sleep. Psychiatric conditions like may feature auditory hallucinations or disorganized speech, but these occur during full wakefulness and are accompanied by broader psychotic symptoms, differentiating them from the unaware, sleep-bound utterances of somniloquy. Catatonia, often linked to or mood disorders, manifests as mutism, , or rigid posturing in an awake state, without the sleep-specific timing of somniloquy. Organic causes, including , can produce grunting or moaning due to esophageal discomfort during sleep, but these are non-verbal sounds lacking linguistic content, unlike the articulate or mumbled words in somniloquy. Vocalizations in arise from respiratory efforts, presenting as gasps or groans synchronized with breathing pauses, rather than spontaneous speech. Key differentiators for somniloquy include the absence of postictal confusion following episodes, which is common in seizures, and normal EEG findings during events, as opposed to epileptiform discharges seen in nocturnal ; can confirm these distinctions by capturing EEG normalcy and the lack of in somniloquy.

Management

Treatment Options

Treatment for sleep-talking, or somniloquy, is typically not required unless episodes cause significant distress, disrupt relationships, or occur alongside other sleep disorders. Management emphasizes addressing underlying factors such as anxiety or poor sleep quality through non-pharmacological approaches, with medications reserved for severe cases. Evidence for specific interventions is limited, as few randomized controlled trials focus exclusively on somniloquy, but strategies drawn from broader research show promise in reducing frequency. Behavioral therapies form the cornerstone of treatment, particularly (CBT-I), which targets anxiety and sleep-disrupting patterns that may exacerbate -talking. CBT-I incorporates techniques like sleep restriction, , and to improve overall architecture and reduce events. A 2024 systematic review highlighted as an effective first-line psychotherapeutic option for disorders, with studies demonstrating sustained improvements in sleep quality without side effects. Additionally, a small 2013 case series on disorders of reported improvement in symptoms, including some verbalizations, in six participants treated with or , though larger trials are needed for somniloquy specifically. practices, such as maintaining a consistent schedule and avoiding evening stimulants, are often integrated into these therapies and can lead to noticeable reductions in mild cases by stabilizing cycles. Pharmacological options are used cautiously for persistent or severe sleep-talking, particularly when linked to other parasomnias. Low-dose , a , may be considered for severe cases associated with other parasomnias, such as REM sleep behavior disorder or night terrors, due to its role in suppressing arousals, though evidence for somniloquy is limited. supplementation (2–12 mg taken hours before bedtime) may serve as an alternative for NREM-related episodes; a analysis found it effective in 88% of patients with NREM parasomnias. These agents are off-label for somniloquy and require monitoring for side effects like dependence. In cases where sleep-talking is induced by antidepressants, such as selective serotonin reuptake inhibitors, dose adjustment or switching medications under medical supervision can resolve episodes, as supported by reviews of drug-related parasomnias. Treating comorbid conditions is essential, as sleep-talking often coexists with disorders like (OSA), which can trigger arousals. Continuous positive airway pressure (CPAP) therapy for OSA can improve symptoms in affected patients by enhancing continuity. Consultation with a sleep specialist is recommended to identify and address such comorbidities through polysomnography-guided interventions. Overall efficacy varies, with behavioral approaches showing promise in reducing symptoms of mild parasomnias based on reviews of disorders, though somniloquy-specific outcomes vary and long-term follow-up is advised.

Prevention Strategies

Preventing sleep-talking, or somniloquy, primarily involves adopting proactive lifestyle and environmental modifications to promote overall quality and minimize triggers associated with partial arousals during . Good practices form the foundation of these strategies, as they help regulate cycles and reduce the likelihood of disruptions that may lead to verbalizations. Establishing a consistent routine, such as dimming lights and engaging in relaxing activities like reading, can signal the body to wind down effectively. Aiming for 7 to 9 hours of per night for adults, or age-appropriate durations for children (e.g., 9-11 hours for school-aged kids), further supports restorative and lowers the risk of , which is linked to increased occurrences. Avoiding screens at least 30 minutes before bed is also recommended, as exposure can suppress production and delay onset. Stress management techniques play a crucial role in prevention, given that elevated anxiety can heighten thresholds during . Regular exercise earlier in the day, such as aerobic activities, promotes better by reducing levels and enhancing relaxation. practices or before bedtime may similarly alleviate psychological tension, potentially decreasing episode frequency. While (CBT) shows promise for parasomnias by building relaxation skills, its application to sleep-talking remains investigational, with small studies indicating benefits in related disorders. Limiting intake of certain substances in the evening is another key preventive measure, as they can fragment sleep and provoke arousals. should be avoided at least 6 hours before , as it blocks receptors and prolongs . consumption, even in moderation, disrupts and non-REM sleep stages, increasing the propensity for sleep-talking; thus, it is advisable to abstain in the hours leading up to sleep. Sedatives and certain medications should be minimized or timed appropriately under medical guidance to prevent rebound effects that might trigger episodes. Optimizing the sleep environment helps minimize external stimuli that could interrupt sleep continuity. Maintaining a bedroom that is cool (around 60-67°F or 15-19°C), dark, and quiet reduces sensory arousals, with machines potentially aiding in sound masking if needed. Ensuring the space is free from clutter and further fosters a conducive atmosphere for uninterrupted rest. For children, who experience sleep-talking more frequently, parental strategies emphasize routine and trigger avoidance. Implementing a fixed sleep schedule, including consistent wake times even on weekends, helps stabilize circadian rhythms and prevent overtiredness that may precipitate episodes. Scheduled naps, when appropriate for younger children, ensure adequate total sleep without causing nighttime disruptions. Managing fevers promptly with antipyretics and comfort measures is important, as illness can lower the arousal threshold and exacerbate parasomnias like sleep-talking. Keeping a to track patterns, such as bedtime habits or recent stressors, allows parents to identify and address specific contributors early.

Associated Phenomena

Relation to Other Parasomnias

Sleep-talking often co-occurs with other non-rapid eye movement (NREM) parasomnias in children, particularly within the disorders of arousal cluster that includes and night terrors. Studies indicate significant , with approximately 30% of children who experience also exhibiting sleep-talking, compared to about 5% in the general population. This overlap is attributed to shared genetic and neurophysiological factors, such as incomplete arousals from deep NREM sleep stages. Although sleep-talking was reclassified outside of NREM parasomnias in the (ICSD-3), its frequent association with these conditions underscores the need for comprehensive evaluation in pediatric cases to address potential injury risks and sleep fragmentation. In adults, sleep-talking shows notable associations with rapid eye movement () parasomnias, especially , where vocalizations can manifest as dream-enacting behaviors. This link is particularly pronounced in individuals with , where frequent sleep-talking (occurring at least weekly) serves as an independent for increased mortality, potentially reflecting broader neurodegeneration beyond motor symptoms. Recent 2024 research highlights that combined with sleep-talking exacerbates prognostic outcomes in this population, emphasizing the clinical importance of monitoring vocalizations as a marker for disease progression. Obstructive sleep apnea (OSA) is another common comorbidity that can trigger or exacerbate sleep-talking, with vocalizations emerging in response to respiratory arousals. In children with OSA, the prevalence of sleep-talking rises to around 18% compared to 9% in those without breathing disturbances, suggesting that airway instability during sleep may provoke these episodes in approximately 20% of cases. This association highlights the role of treating underlying OSA to mitigate severity. Sleep-talking also appears at higher rates in certain psychiatric conditions, such as (PTSD) and , though no direct causality has been established. In , sleep-talking contributes to overall sleep disruption during mood episodes, while in PTSD, it may overlap with trauma-related vocalizations during arousals. The phenomenon of overlap syndrome, where NREM and parasomnias coexist, further complicates sleep-talking presentations and amplifies clinical severity, often necessitating multifaceted approaches like or behavioral interventions to manage heightened risks of injury and daytime impairment. This syndrome increases the complexity of and elevates needs, as overlapping behaviors can intensify sleep instability and quality-of-life impacts.

Cultural and Historical Aspects

Sleep-talking, known historically as somniloquy, has been observed since ancient times, with the pre-Socratic philosopher of noting an instance around 500 BCE, marking one of the earliest recorded accounts of the phenomenon. In and , sleep-related behaviors like talking were often intertwined with beliefs in divine or prophetic influences, viewing them as potential manifestations of spiritual visions or messages from the gods during altered states of consciousness. These early interpretations framed sleep-talking not as a medical curiosity but as a bridge to the , reflecting broader cultural reverence for dreams and nocturnal experiences. By the medieval period in , sleep-talking and related parasomnias such as were frequently associated with surrounding and demonic influences, where nocturnal utterances were seen as evidence of spectral or pacts with otherworldly entities. Accounts of "noctambuli"—night wanderers—described sleepers whose words or actions were attributed to the escape of "animal spirits" during , fueling tales of witches and omens that contributed to social fears and superstitions. This perception persisted into early modern times, blending with emerging medical discourse. In the , sleep-talking began to shift toward medicalization within the psychoanalytic framework, where it was occasionally regarded as a window into the subconscious, though provided no systematic analysis of somniloquy itself, focusing instead on dreams as revelations of repressed desires. Literary depictions during this era and earlier, such as in William Shakespeare's (1606), portrayed sleep-talking for psychological depth; Lady Macbeth's famous , where she mutters about bloodstained hands while attempting to wash imaginary guilt away, symbolizes the eruption of suppressed remorse into conscious awareness. Culturally, sleep-talking has elicited varied responses, often taboo or mystical in non-Western societies where it may be interpreted as spirit communication or ancestral dialogue, contrasting with Western humor in media portrayals, such as comic relief in family-oriented television narratives.

References

  1. [1]
    Somniloquy - an overview | ScienceDirect Topics
    Somniloquy, also known as sleeptalking, is defined as talking during sleep “with varying degrees of comprehensibility.”
  2. [2]
    Sleep Talking: What Is Somniloquy? - Sleep Foundation
    Jul 25, 2025 · Sleep talking, formally known as somniloquy, is a sleep disorder defined as talking during sleep without being aware of it.
  3. [3]
    [PDF] Sleepwalking & Sleep Talking
    Prevalence. ▫ Sleepwalking occurs in as many as 17 percent of children and four percent of adults. ▫ Sleep talking occurs in half of young children and in ...Missing: definition scientific sources
  4. [4]
    Prevalence of different parasomnias in the general population
    There were few associations between the parasomnias and gender and symptoms of sleep apnea, insomnia, and restless legs, respectively. About 12% reported having ...Missing: differences | Show results with:differences
  5. [5]
    Sleep Talking - an overview | ScienceDirect Topics
    Sleep talking, otherwise known as somniloquy, is one of the most common altered nocturnal behaviors that is a nonpathological condition consisting of verbal ...
  6. [6]
    Sleeptalking in twins: epidemiology and psychiatric comorbidity
    Sleeptalking is usually benign but chronic cases in adults may relate to psychopathology. We hypothesize substantial genetic influences in the liability to ...
  7. [7]
    The Influence of Sleep Talking on Nocturnal Sleep and Sleep ... - NIH
    Nov 1, 2022 · Background: Sleep talking (ST) is characterized by the production of unaware verbal vocal activations (VBs) during sleep.
  8. [8]
  9. [9]
    Classification of Parasomnias | Current Sleep Medicine Reports
    Mar 30, 2016 · Somniloquy, or sleep talking, is not actually considered a disorder according to the ICSD third edition; rather it is considered as a normal ...Nrem-Related Parasomnias · Rem Sleep Behavior Disorder · Other Parasomnias
  10. [10]
    Somniloquy - Etymology, Origin & Meaning
    Originating from Latin somni- "sleep" + loqui "to speak," somniloquy means the act or habit of talking in one's sleep.Missing: first 19th century
  11. [11]
    somniloquy, n. meanings, etymology and more
    The earliest known use of the noun somniloquy is in the 1840s. OED's earliest evidence for somniloquy is from 1847, in Webster's American Dictionary English ...Missing: 19th century
  12. [12]
    Sleep Talking: Definition, Symptoms, Traits, Causes, Treatment
    Sep 22, 2022 · The main symptom of somniloquy is talking during sleep without being aware of it. The things people say during these episodes can range from ...Missing: presentation | Show results with:presentation
  13. [13]
    Sleep Talking - Sleep Education by AASM
    May 5, 2021 · Sleep talking is also called “somniloquy.” It is a parasomnia. A parasomnia involves undesired behaviors that occur during sleep.
  14. [14]
    None
    ### Summary of Sleep Talking Clinical Presentation
  15. [15]
    Is Sleep Talking a Sign of a Sleep Disorder?
    Because REM sleep is when the most vivid dreaming occurs, speech during this stage can sometimes seem more coherent or even emotional. Unlike non-REM sleep ...Missing: NREM | Show results with:NREM
  16. [16]
    Parasomnias - PMC - PubMed Central
    Parasomnias occur when transitions between these stages are blurred (commonly between stages III/IV and the awake state), causing behaviours that lack the ...Missing: physiological | Show results with:physiological
  17. [17]
  18. [18]
    Sleep Talking - an overview | ScienceDirect Topics
    Sleep-talking, medically termed somniloquy, is the production of verbal vocalizations during sleep without conscious awareness. It is considered a normal sleep ...Missing: 19th | Show results with:19th
  19. [19]
    Causes of Somniloquy (Sleep Talking) - News-Medical
    Dec 18, 2020 · Sleep talking is predominantly seen in individuals with mental health issues or conditions such as post-traumatic stress disorder (PTSD), ...
  20. [20]
  21. [21]
    Dreaming and the brain: from phenomenology to neurophysiology
    Aminergic de-modulation and deactivation of dorsolateral prefrontal cortex in REM sleep create a brain state which is not favorable for subsequent memory [11].<|separator|>
  22. [22]
    Sleep Talking - an overview | ScienceDirect Topics
    Other causes of sleep talking include side effects from certain medications, emotional stress, fever, a mental health disorder, and substance abuse. If the ...
  23. [23]
    Why Do People Talk in Their Sleep?
    May 3, 2024 · Sleep talking, also known as somniloquy, is the act of speaking out loud during sleep. While you're sleeping, you can: Talk in whispers ...Missing: presentation | Show results with:presentation
  24. [24]
    Sleep disorders - Symptoms and causes - Mayo Clinic
    Sep 10, 2024 · Stress, depression, anxiety and other mental health conditions may affect sleep. Schedule changes. Jet lag or shift work can change your sleep- ...Overview · Symptoms · Risk Factors<|separator|>
  25. [25]
    Prevalence of sleep-talking in childhood - PubMed
    About half the children of all ages presented somniloquy at least once a year, but less than 10% presented it everyday. No clearmarked correlation with age, sex ...
  26. [26]
    Childhood Parasomnias Such as Sleepwalking and Bedwetting May ...
    Jul 30, 2024 · The most common problem was sleep talking, which had a prevalence rate of 22.3 percent and persisted into adolescence in 46 percent of cases.
  27. [27]
  28. [28]
    Sleeptalking - MedLink Neurology
    Sleeptalking is a common, benign behavior with verbalizations during REM or NREM sleep, often genetic and typically seen in children.
  29. [29]
    Parasomnias and sleep disordered breathing in Caucasian and ...
    However, prevalence rates for sleepwalking, sleep talking, and terrors were not different with respect to age, gender and ethnicity. To further describe the ...Missing: demographic variations
  30. [30]
    What is sleep talking? | Nicklaus Children's Hospital
    Jan 28, 2021 · When a child talks in his or her sleep without being aware of it, this is known as sleep talking.Missing: signs | Show results with:signs<|separator|>
  31. [31]
    Polysomnography for Non-Respiratory Sleep Disorders
    Polysomnography (PSG) records multiple physiologic parameters relevant to sleep. Videorecording may also be performed during PSG to assess parasomnias such as ...
  32. [32]
    [PDF] SCREENING QUESTIONS - SLEEP HISTORY & PHYSICAL
    Do you sleep talk, and if so, can you be understood? Can people understand what you are saying? Also, if these events occur, do they occur in the first third of ...
  33. [33]
    Automatic detection of obstructive sleep apnea based on speech or ...
    Apr 29, 2024 · An automatic approach based on speech or snoring sounds seems to be a promising tool for the detection of OSA.<|control11|><|separator|>
  34. [34]
    AI That Listens: Understanding Sleep Through Sound
    May 12, 2025 · A proprietary AI-based sound model that transforms ordinary audio data into a window of the sleeping mind and body, giving us an unparalleled view of the ...
  35. [35]
    The Role of the Epilepsy Monitoring Unit in Diagnosis - PMC - NIH
    Jan 15, 2020 · The patient reported a long history of somniloquy (sleep-talking) ... It can be difficult to differentiate parasomnias from nocturnal seizures ...
  36. [36]
  37. [37]
    Confusional arousal | MedLink Neurology
    Differential diagnosis includes other non-REM and REM sleep parasomnias as well as seizures. Confusional arousals are more commonly seen in patients with ...
  38. [38]
    Parasomnias: What They Are, Symptoms, Treatment & Types
    Parasomnias are disruptive behaviors or events that affect your sleep. You might walk, talk or make physical movements to act out a dream.Missing: somniloquy | Show results with:somniloquy
  39. [39]
    Rapid Eye Movement Sleep Behavior Disorder - StatPearls - NCBI
    Rapid eye movement behavior disorder (RBD) is a parasomnia involving dream enactment behavior associated with loss of atonia during rapid eye movement (REM) ...
  40. [40]
    REM Sleep Behavior Disorder Differential Diagnoses
    Oct 1, 2024 · The following primary disorders of arousal should be considered in the differential diagnosis of rapid eye movement sleep behavior disorder (RBD).Missing: talking | Show results with:talking
  41. [41]
    Catatonic Schizophrenia - StatPearls - NCBI Bookshelf - NIH
    Jul 24, 2023 · Catatonic schizophrenia is one of the classical clinical subtypes of schizophrenia. The concept of catatonic symptoms in schizophrenia has changed throughout ...Missing: sleep talking
  42. [42]
    Catatonia: Definition, Causes, Symptoms & Treatment
    Jul 18, 2022 · People with catatonia, especially with conditions like schizophrenia, have an increased risk of self-harm and suicide. You should go to the ...Missing: differential | Show results with:differential
  43. [43]
    Waking Up Gasping for Air: Anxiety, Falling Asleep, Acid Reflux
    Dec 8, 2017 · Waking up gasping for air can be jarring. We explain the different health conditions that can lead to this phenomenon and their treatments.
  44. [44]
    Obstructive sleep apnea - Symptoms and causes - Mayo Clinic
    Jul 14, 2023 · People with obstructive sleep apnea repeatedly stop and start breathing while they sleep. These breath pauses are known as apneas. There are ...Missing: GERD | Show results with:GERD
  45. [45]
  46. [46]
    Sleep talking: Causes, side effects, and how to stop
    Jul 9, 2021 · Sleep talking is a sleep disorder that causes people to call out, speak, or produce incoherent language during sleep.Missing: definition | Show results with:definition
  47. [47]
  48. [48]
    Sleep disturbances: managing parasomnias in general practice
    Confusional arousals are partial awakenings with impaired consciousness and memory, that can occur during deep sleep or upon attempted waking.11 Episodes ...What Are Parasomnias? · Non-Rem Parasomnias · Rem Sleep Behaviour Disorder
  49. [49]
    NREM Parasomnias: Retrospective Analysis of Treatment ...
    Aug 16, 2022 · Melatonin was reported to be the most efficacious of all medications, with 88% of patients reporting clinical symptom improvement at follow-up ...
  50. [50]
    Parasomnias and Antidepressant Therapy: A Review of the Literature
    Dec 12, 2011 · There is a potential for selective serotonin reuptake inhibitors, tricyclic antidepressants, and serotonin–norepinephrine reuptake inhibitors to ...
  51. [51]
    Talking in Your Sleep: Sleep Talking Causes and Treatments
    ### Prevention and Strategies to Stop Sleep Talking
  52. [52]
    Why Do I Talk in My Sleep? - Mass General Brigham
    Feb 8, 2024 · The two main triggers of sleep talking in adults are: Jet lag: Switching between time zones disrupts how long someone stays awake during a full ...Missing: review | Show results with:review
  53. [53]
    Night terrors in children: MedlinePlus Medical Encyclopedia
    Apr 6, 2025 · The cause is unknown, but night terrors may be triggered by: Fever; Lack of sleep; Periods of emotional tension, stress, or conflict.Missing: management | Show results with:management
  54. [54]
    Sleep Terrors and Sleep Walking | Duke Health
    The overall incidence is 3 percent in children. They usually occur between four and 12 years old with a peak incidence around age eight.
  55. [55]
    Dyssomnias and Parasomnias in Early Childhood - AAP Publications
    May 1, 2007 · The most frequent parasomnias were somniloquy, bruxism, and sleep terrors, each affecting ≥40% of the study sample.
  56. [56]
    NREM Sleep Parasomnias Commencing in Childhood - MDPI
    Sleep-talking is no longer included under NREM parasomnias in ICSD-3 [2]. Sleepwalking appears to be more prevalent in childhood compared to adults (14.5% vs.
  57. [57]
    Impact of REM Sleep Behavior and Sleep Talking on Mortality in ...
    Jan 19, 2024 · Our new findings suggest that frequent ST (talking in their sleep at least one night a week) is a new risk factor for mortality in PD. RBD with ...
  58. [58]
    Impact of REM Sleep Behavior and Sleep Talking on Mortality in ...
    Jan 19, 2024 · RBD with frequent ST and ST alone appear to be risk factors for mortality in PD. Frequent ST may be a sign representing wider neurodegeneration.
  59. [59]
    Can Depression Cause Sleep Talking? - Sleep Foundation
    Jul 16, 2025 · Sleep talking may also be called somniloquy or be ... The International Classification of Sleep Disorders – Third Edition (ICSD-3).
  60. [60]
    Sleep Disturbance in Bipolar Disorder Across the Lifespan - PMC
    As evident, during a manic episode there is a reduced need for sleep in 69–99% of patients and longer sleep onset latency. The majority of sleep architecture ...
  61. [61]
    A parasomnia overlap disorder involving sleepwalking, sleep terrors ...
    A parasomnia overlap disorder involving sleepwalking, sleep terrors, and REM sleep behavior disorder in 33 polysomnographically confirmed cases · Authors.Missing: talking | Show results with:talking<|control11|><|separator|>
  62. [62]
    Parasomnia overlap disorder, Parkinson's disease and subthalamic ...
    Jul 18, 2017 · NREM-parasomnia included repeated mumbling, sleep-talking and confusional arousals.Missing: syndrome | Show results with:syndrome
  63. [63]
    Scientific Significance of Sleep Talking - Frontiers for Young Minds
    Apr 24, 2014 · A recent study found that more than half of all people have had the experience of speaking out loud while being asleep.
  64. [64]
    How Sleepwalking Went From A Spiritual Oddity to a Medical Issue
    Mar 16, 2017 · Sleepwalking and sleeptalking go back to ancient times, and they were often associated with religious visions that might be manifest in fits, trances, and ...
  65. [65]
    The Noctambuli: tales of sleepwalkers and secrets of the body in ...
    The view that the actions of sleepers were made possible by the escape of animal spirits and were guided by dreams was well established in Europe by this time, ...
  66. [66]
    The Psychoanalytic Literature and Somniloquy | 15 | Sleep Talking | Ar
    It is curious that Freud made no systematic or extensive comment on sleep-talking. Sleep-talking incidents and their content appear to be influenced by dream ...
  67. [67]
    Macbeth - Act 5, scene 1 | Folger Shakespeare Library
    A gentlewoman who waits on Lady Macbeth has seen her walking in her sleep and has asked a doctor's advice. Together they observe Lady Macbeth make the gestures ...
  68. [68]
    Study suggests that sleep problems are influenced by race and ...
    Jun 24, 2015 · A study published in the June issue of SLEEP found that sleep disturbances and undiagnosed sleep apnea occur more frequently among racial/ ...Missing: variations | Show results with:variations