Sleep Disorder-Night Terrors Disorder

Sleep terrors are classified as a parasomnia — an undesirable behavior or experience during sleep. Sleep terrors are a disorder of arousal, meaning they occur during N3 sleep, the deepest stage of non-rapid eye movement (NREM) sleep. Another NREM disorder is sleepwalking, which can occur together with sleep terrors.


Cluster Number:
Wiki Number: PW205
Diagnosis: Sleep Terror Disorder
US Patients: 36.9% at 18 months but 19.7% at 30 months; in adults, 2.2%
World Patients:
Sex Ratio: B+; G; adults, no difference
Age Onset: at age 3½, one per week; frequency tapers off
Brain Area: high voltages in electroencephalography, higher heart rate and muscle tone; frontal lobe epilepsy, thalamic lesions,
Symptoms: 1-10 minutes in the first 3-4 hours of non-REM (early) sleep; usually happen in delta (slow-wave) sleep.
Progression: sit up and yell, time of autonomic arousal (speed-up)seem awake but are confused, sleepwalking, low blood sugar
Causes: PTSD, mental disorders, generalized anxiety disorder, higher frequency among relatives, asthma, constricted nasal passages
Medications: tricyclic antidepressants, benzodiazepines
Therapies: Children usually do not need treatment, diminish with age. Hypnosis may help. Better sleep habits.

Youtube Video:

Five Nights at Freddy’s

Youtube Video:

How to Stop Night Terrors

Amazon or Library Book: The Nightmare Dictionary

Click the book to link or order from Amazon.


The world-wide medical research
reports chosen for each diagnosis 

Clicking each title opens the
PubMed article’s summary-abstract.

  • Educational Resources to Support Patients with Parasomnias
    by Courtney D Molina on February 17, 2024

    This article serves to help reduce patient burden in searching for credible information about parasomnias-abnormal behaviors during sleep-including sleepwalking, night terrors, and rapid eye movement sleep behavior disorder. It exhibits a compiled list of accessible online resources about parasomnias as well as detailed descriptions about each resource. By increasing patient accessibility to clinically validated resources, patients are more empowered to take an active role in managing their...

  • Somnambulism
    by Ramona Cordani on February 17, 2024

    Somnambulism, also called sleepwalking, classified as a non-rapid eye movement sleep parasomnia, encompasses a range of abnormal paroxysmal behaviors, leading to sleepwalking in dissociated sleep in an altered state of consciousness with impaired judgment and configuring a kind of hierarchical continuum with confusional arousal and night terror. Despite being generally regarded as a benign condition, its potential severity entails social, personal, and even forensic consequences. This...

  • Sleep Terrors
    by Muna Irfan on February 17, 2024

    Sleep terrors, categorized under disorders of arousal, more prevalent in pediatric population, generally are self-limited but sometimes can persist or occur in adulthood. These are primed by factors enhancing homeostatic drive on backdrop of developmental predisposition and are precipitated by factors increasing sleep fragmentation resulting in dissociated state of sleep with some cerebral regions showing abnormal slow wave activity and others fast activity. This phenotypically evolves into...

  • Challenging Case: A Multidisciplinary Approach to Demystifying Chronic Sleep Impairment in an Infant with a Complex Medical and Behavioral Profile
    by Erica Gleason on January 30, 2024

    X is a 22-month-old White male infant with a complex medical history, including diagnoses of FBXO11 mutation, hypotonia, restrictive lung disease and mild intermittent asthma, laryngotracheomalacia, obstructive sleep apnea (OSA), feeding difficulties with a history of aspiration, gastroesophageal reflux disease (GERD), and developmental delays. X's medical presentation has resulted in multiple prior medical admissions for respiratory failure due to acute illnesses, procedures and treatments...