Parasomnias (Sleepwalking, Night Terrors & REM Sleep Behavior Disorder)

Parasomnias are a group of sleep disorders characterized by unusual behaviors, movements, emotions, perceptions, or experiences that occur during sleep or while transitioning between sleep and wakefulness. These events can range from mild sleep talking to more complex behaviors such as sleepwalking, night terrors, sleep-related eating, or physically acting out dreams.

While some parasomnias are relatively harmless and occur commonly in children, others can lead to injury, disrupt sleep quality, affect relationships, or signal an underlying neurologic or sleep disorder requiring medical attention.

At The Medical Group of New Jersey, our Sleep Medicine specialists evaluate a full spectrum of parasomnias using comprehensive sleep assessments, advanced sleep studies, and individualized treatment plans designed to improve safety, reduce episodes, and restore healthy sleep.

Symptom Onset & Initial Evaluation

Parasomnias may occur during deep non-REM sleep, REM sleep, or transitions between sleep stages. Symptoms vary depending on the specific disorder and may occur occasionally or several times per week.

Common parasomnias include:

Sleepwalking (Somnambulism)

Individuals may sit up, walk around the house, perform routine activities, or leave the home while remaining partially asleep and unaware of their surroundings.

Night Terrors

Night terrors involve sudden episodes of intense fear, screaming, rapid heart rate, sweating, and confusion. Unlike nightmares, patients often have little or no memory of the event the following morning.

REM Sleep Behavior Disorder (RBD)

Normally, muscles become temporarily paralyzed during dreaming. In RBD, this protective paralysis is absent, allowing patients to physically act out vivid dreams through talking, punching, kicking, grabbing, or jumping from bed.

Sleep Talking

Speech during sleep may range from simple sounds to complex conversations and often occurs without awareness.

Sleep-Related Eating Disorder

Patients may eat or prepare food during sleep while having little or no recollection of the behavior afterward.

Common symptoms prompting evaluation include:

Sleepwalking episodes
Violent movements during sleep
Dream enactment behaviors
Falling from bed
Injuries to self or bed partners
Screaming during sleep
Confusion upon awakening
Unexplained nighttime behaviors
Family concerns regarding safety

During your consultation, your physician will obtain a detailed history from both the patient and, when possible, a bed partner or family member who has witnessed the episodes.

Diagnosis

Diagnosing parasomnias requires careful evaluation of symptom patterns, sleep behaviors, medical history, and potential contributing factors.

Comprehensive Sleep History

Your physician will review the description of events, frequency and timing of episodes, sleep schedules, medication use, alcohol consumption, family history, neurologic symptoms, and stress levels.

Video Documentation

Home videos recorded by family members may help characterize episodes and guide diagnosis.

Overnight Polysomnography

A sleep study with video monitoring may be recommended to confirm REM Sleep Behavior Disorder, evaluate for obstructive sleep apnea, identify seizure activity, differentiate among parasomnia subtypes, and assess unusual nighttime behaviors.

Neurologic Evaluation

Some patients, particularly those with REM Sleep Behavior Disorder, may require neurologic assessment because RBD can occasionally be associated with neurodegenerative conditions such as Parkinson’s disease and Lewy body dementia.

At The Medical Group of New Jersey, our specialists perform comprehensive evaluations to identify the underlying cause of abnormal sleep behaviors and develop targeted treatment strategies.

Treatment

Treatment depends on the specific parasomnia, severity of symptoms, injury risk, and underlying causes.

Improving Sleep Quality

Sleep deprivation is a common trigger for many parasomnias. Treatment often begins with optimizing sleep habits and ensuring adequate sleep duration. Recommendations may include maintaining a consistent sleep schedule, reducing sleep deprivation, managing stress, limiting alcohol consumption, and avoiding sedating substances when appropriate.

Environmental Safety Measures

Safety modifications are often essential. Recommendations may include securing doors and windows, removing sharp objects from the bedroom, installing alarms if needed, padding furniture edges, moving mattresses lower to the floor, and protecting bed partners from injury.

Medication Management

When episodes are frequent, dangerous, or disruptive, medications may be recommended. Treatment options vary depending on the parasomnia and may include melatonin, clonazepam, selected sleep medications, or treatment of contributing psychiatric or neurologic conditions.

Treating Underlying Sleep Disorders

Many parasomnias improve significantly when contributing disorders are addressed, including obstructive sleep apnea, restless legs syndrome, periodic limb movement disorder, circadian rhythm disorders, and chronic insomnia.

Ongoing Management & Prevention

Many parasomnias can be successfully managed with a combination of behavioral strategies, environmental safety measures, and treatment of contributing conditions.

Long-term management may include:

Regular follow-up evaluations
Sleep schedule monitoring
Medication adjustments
Safety reassessments
Repeat sleep testing when necessary
Coordination with neurology specialists when appropriate

Most patients experience meaningful reductions in episodes and improved sleep quality following appropriate treatment.

Related Specialties

Sleep Medicine