Children Who Sleepwalk: Causes, Risks, and What to Do

Sleepwalking in children is remarkably common, usually harmless, and almost always something kids grow out of. A large longitudinal study following more than 1,500 children found that roughly 29% sleepwalked at least once between the ages of two and a half and thirteen, with the behavior peaking around age ten.

How Common Is Childhood Sleepwalking, Really?

The numbers depend on how you measure. If you ask whether a child has sleepwalked in the past year, the figure is around 5%, which is already several times higher than the roughly 1.5% rate in adults.¹ But if you track the same children over their entire childhood, the cumulative picture is much more striking. In one cohort study, sleepwalking was uncommon in preschoolers, then climbed steadily until about 13% of the children were sleepwalking at age ten, and it stayed near that level through age thirteen. Over the full span from toddlerhood to the early teen years, 29% of the children had at least one episode.²

So while any given night or even any given year might look calm, a surprisingly large share of children will sleepwalk at some point. Most of these episodes are isolated or infrequent, and many parents never even realize they’ve happened.

What Happens in the Brain During an Episode

Sleepwalking belongs to a family of events called disorders of arousal, which also includes night terrors and confusional arousals. They all share the same basic mechanism: during deep sleep, the brain partially wakes up. Parts of it shift into something resembling wakefulness, enough to get the body moving, while other parts stay deeply asleep, which is why the child has no awareness of what they’re doing and typically remembers nothing afterward.

Recent neuroimaging work has confirmed that this partial-wake state involves a consistent spatial pattern in the brain, one that looks similar in both children and adults who experience these events. Researchers describe it as a “local sleep–wake dissociation,” meaning different brain regions are literally in different states at the same time.³ The reason children are more prone to this mix-up is thought to relate to brain maturity. Studies of adult sleepwalkers have found signs that the brain’s inhibitory circuits, the ones responsible for keeping motor activity suppressed during sleep, work less efficiently. In children, those circuits are still developing, which may be why sleepwalking is so much more common at younger ages and typically fades as the brain matures.⁴

Why Some Children Sleepwalk and Others Don’t

Genetics plays a substantial role. If one or both parents sleepwalked as children, the odds go up considerably for their kids. In the same longitudinal study that tracked prevalence through childhood, a strong pattern of familial clustering emerged, with sleepwalking running clearly through family lines.² Research on one large extended family identified a specific region on chromosome 20 linked to sleepwalking, inherited in a pattern consistent with a single dominant gene, though not everyone who carries it actually sleepwalks.⁵

Genetics loads the gun, but triggers pull it. In a child who is predisposed, a number of things can set off an episode on any given night.

Common Triggers Parents Should Know About

The single most reliable trigger is sleep deprivation. When a child hasn’t slept enough, their brain compensates with more deep sleep the following night, and deep sleep is exactly the stage where sleepwalking originates. In a controlled study of adult sleepwalkers, every single participant had a sleepwalking episode during recovery sleep after being kept awake for 25 hours, compared to only about a third during normal sleep.⁶ The same principle applies to children, and it creates a frustrating cycle: a child with a chaotic bedtime routine sleeps poorly, which produces deeper rebound sleep, which increases the chance of an episode.

Stress and emotional upheaval are another recognized trigger. Anything that increases arousal during sleep, whether it’s anxiety about a new school, a fight with a friend, or even excitement about a holiday, can nudge a sleeping brain toward that partial-wake state.⁷

Fever deserves special mention. Febrile illness has long been recognized as a trigger for sleepwalking and night terrors in susceptible children.⁸ If your child never sleepwalks except when they’re sick, that’s a well-documented pattern rather than anything to worry about on its own.

Less commonly, certain medications can provoke sleepwalking. A systematic review identified roughly 29 drugs linked to the behavior, mostly in four categories: sleep aids that work on GABA receptors (the most strongly implicated being zolpidem), antidepressants, antipsychotics, and beta-blockers. Most of these associations come from case reports rather than large trials, but if your child starts sleepwalking after beginning a new medication, it’s worth mentioning to their doctor.⁹

The Hidden Link to Breathing Problems During Sleep

One of the more underappreciated causes of persistent sleepwalking in children is disordered breathing during sleep. This includes conditions like obstructive sleep apnea, where the airway briefly closes during sleep, and a milder version sometimes called upper airway resistance syndrome, where the airway narrows enough to cause brief arousals without full oxygen drops.

In one study, children with any measurable breathing disturbance during sleep were nearly three times as likely to sleepwalk as children without one.¹⁰ A separate study of children referred specifically for recurrent sleepwalking found that every single one of them had either obstructive sleep apnea or upper airway resistance syndrome.¹¹

This matters enormously for treatment. In a study of 84 children with parasomnias, 61% had a co-existing sleep disorder, mostly breathing-related. Of the 49 children with sleep-disordered breathing who underwent treatment, typically tonsil and adenoid removal, the sleepwalking stopped completely in all of them.¹² That is a striking result. For a child who sleepwalks frequently, snores, or breathes loudly during sleep, the most effective treatment may not be directed at the sleepwalking at all but at whatever is fragmenting their sleep.

Safety During Episodes

The biggest practical concern with sleepwalking isn’t the behavior itself but the risk of injury. A sleepwalking child can navigate stairs, open doors, and even attempt to leave the house while having no conscious awareness of their surroundings. They can trip, fall, walk into furniture, or encounter hazards they’d normally avoid.

A few commonsense measures go a long way:

Secure the environment: Lock exterior doors and windows, install gates at the top of stairs, and move sharp or breakable objects away from pathways the child might take.
Alarms or bells: A simple bell on the child’s bedroom door, or a door alarm, alerts you when they leave the room.
Lower bunks: If the child sleeps on a top bunk, move them down.
Don’t try to wake them: Gently guide the child back to bed instead. Waking a sleepwalker can cause confusion and distress without any benefit. They aren’t in danger from being asleep; they’re in danger from where they go while they’re up.

Restraining or shouting at the child doesn’t help and can make the episode longer or more agitated. The calm-redirect approach is what sleep specialists consistently recommend.

What Parents Can Do to Reduce Episodes

Because sleep deprivation is such a reliable trigger, the first and most effective step is making sure the child gets enough sleep on a consistent schedule. Going to bed at the same time every night, avoiding late nights before school days, and even adding an afternoon nap for younger children can reduce the deep-sleep rebound that provokes episodes.⁷ Reducing screen time and excitement close to bedtime helps too, since emotional arousal before sleep can carry over into the night.

For children with frequent and predictable episodes, a technique called scheduled awakenings has shown consistent results. Parents track when the sleepwalking typically occurs, which usually follows a recognizable pattern within the first few hours of sleep, and then gently rouse the child about 15 to 30 minutes before that time. The child doesn’t need to fully wake up, just stir enough to reset their sleep cycle. In a clinical trial, this approach eliminated sleepwalking in all three children treated, with results holding at both three and six months after stopping the intervention.¹³ Broader reviews of the technique confirm its effectiveness for children with chronic and severe cases.¹⁴

The appeal of scheduled awakenings is that they’re drug-free and parent-controlled, though they do require several weeks of commitment and careful timing.

When to See a Doctor

Most childhood sleepwalking doesn’t need medical attention. It’s generally a benign and self-limited condition.¹⁵ But there are situations where evaluation is warranted:

Frequent episodes: If sleepwalking happens multiple times a week or has been ongoing for months, an underlying sleep disorder may be driving it.
Injury risk: Any episode that results in injury or near-misses, like the child approaching windows or leaving the house, calls for a medical review.
Snoring or noisy breathing: As discussed above, these are red flags for sleep-disordered breathing, which is both a trigger and a treatable cause.
Daytime sleepiness or behavior changes: If the child seems excessively tired, irritable, or inattentive during the day, the sleepwalking may be part of a broader sleep quality problem.
Unusual features: Episodes that involve repetitive, rhythmic, or stereotyped movements, or that happen multiple times per night, can sometimes be confused with nocturnal seizures. Sleep specialists have developed tools specifically to distinguish sleepwalking from a type of epilepsy that occurs during sleep, since the two can look quite similar to a parent watching in the dark.¹⁶

When treatment beyond behavioral strategies is needed, the approach depends on the cause. If a breathing disorder is found, addressing it surgically or with other interventions typically resolves the sleepwalking. In cases where the risk of injury is immediate and no underlying cause is yet identified, medication may be used as a bridge. The most commonly prescribed option is clonazepam, a benzodiazepine, though certain antidepressants have also been used.¹⁷ Medication for childhood sleepwalking is generally seen as a last resort, not a first-line approach.

Will They Grow Out of It?

In most cases, yes. The developmental curve tells the story: sleepwalking rises through childhood, peaks around ten, holds steady for a few years, and then declines as the brain’s inhibitory systems mature. Many children who sleepwalk frequently at eight or nine have completely stopped by their mid-teens without any intervention.

A small minority continue into adulthood. The adult prevalence rate of about 1.5% compared to the childhood rate of about 5% in any given year gives a rough sense of how many children “keep” the trait.¹ Those who persist tend to have stronger family histories and may experience episodes triggered by stress or poor sleep well into adulthood. Even in these cases, the condition usually remains manageable with the same strategies: consistent sleep, trigger avoidance, and treating any co-existing sleep disorders.

Sleepwalking Is Not a Sign of Psychological Problems

One persistent misconception worth clearing up: sleepwalking in children is not caused by emotional disturbance, trauma, or psychological illness. While stress can trigger individual episodes in predisposed children, the condition itself is rooted in the neurology of sleep architecture and brain maturation. Earlier generations sometimes interpreted sleepwalking as a sign that a child was “acting out” unconscious conflicts, a Freudian idea that has no support in modern sleep science. If anything, the research points in the opposite direction. The neural signature of sleepwalking looks the same across pediatric and adult populations, suggesting it’s a stable brain trait rather than a symptom of emotional distress.³

Some researchers have speculated that the brain’s ability to generate rapid motor behavior during partial arousal may even have evolutionary roots, potentially serving as a survival mechanism by allowing fast physical responses to threats during sleep.⁷ Whether or not that’s true, it reframes the phenomenon. Sleepwalking isn’t a malfunction. It’s more like a feature of the developing brain that occasionally misfires, and one that most children leave behind as naturally as they leave behind other childhood quirks.

1
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PubMed Central. Shared local brain dynamics in pediatric and adult NREM parasomnias
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PubMed. Functional involvement of cerebral cortex in adult sleepwalking
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