01 · Overview
The short version
It happens during partial sleep, not on purpose
Sleepwalking is a parasomnia. The person may sit up, walk, talk, or do routine actions with little awareness and little or no memory afterward.
Interrupted sleep can raise the odds
Poor sleep quality, irregular schedules, alcohol, medicines, illness, anxiety, and sleep apnea can all interfere with sleep and may make episodes more likely.
Safety changes matter more than waking them up
The main risk is injury from stairs, windows, sharp objects, doors, or leaving the house. A safer bedroom and calm guidance are usually more useful than trying to force the person awake.
Adult-onset or risky episodes deserve review
New sleepwalking in adulthood, frequent episodes, injury, or episodes linked to another sleep problem or medication change should be checked by a clinician.
02 · Care guidance
When to get help
Emergency help
- Call 911 or local emergency services if a sleepwalking episode involves a serious injury, trouble breathing, loss of consciousness, seizure-like activity, chest pain, or the person does not seem to return to their usual state after the episode.
- Get immediate help if the person is in immediate danger or cannot be kept safe, including risk of falling from a height, entering traffic, or harming themselves or someone else.
Get advice promptly
- Contact a clinician soon if sleepwalking starts in adulthood, happens more than occasionally, leads to injuries, follows a new medicine, or comes with loud snoring, gasping, or major daytime sleepiness.
- Seek prompt care if episodes are paired with sleep-related eating, complex behaviors, memory gaps, or confusion that is not limited to the episode itself.
If episodes are infrequent and there is no injury, start by tracking when they happen, how long they last, sleep schedule changes, fever, stress, alcohol, and medicines. Share this pattern with a primary care clinician or sleep specialist so they can look for triggers and decide whether more testing is needed.
03 · Sleepwalking
What sleepwalking actually is
Sleepwalking is a partial-arousal sleep disorder, so the person is not fully awake and usually cannot explain the behavior later.
Sleepwalking is one kind of parasomnia. That means behavior happens during sleep or while a person is partly waking up. A person may get out of bed, walk around, talk, or do simple actions while still in a sleep state.
Because the brain is not fully awake, the person may look dazed, hard to engage, or confused. The next morning, they may remember little or nothing about the event.
This is not the same as choosing to wander around at night. It is a sleep problem, and the main first step is to reduce danger while looking for what is disturbing sleep.
- The person may seem awake but is not fully aware.
- Memory for the episode is often limited or absent.
- The event itself does not prove a serious illness, but the pattern may still need review.
04 · Sleepwalking
What can make episodes more likely
Sleepwalking often shows up when sleep is disrupted, but there is usually more than one factor to consider.
Anything that makes sleep lighter or more fragmented can raise the chance of an episode. Common contributors include not getting enough sleep, an irregular schedule, stress, fever or illness, alcohol, and medicines.
Sleep quality matters, not just the number of hours in bed. If sleep is often interrupted, a person may not get enough time in certain sleep stages. That kind of disruption can affect how the brain and body function the next day.
Sleepwalking can also happen alongside another sleep disorder. Sleep apnea is one example, because breathing pauses can repeatedly disturb sleep. A bed partner may notice loud snoring, snorting, gasping, or choking sounds.
- Keep a short log of bedtime, wake time, illness, alcohol, and any new medicine.
- A change in pattern after a schedule shift can point toward sleep loss or disruption.
- Family history can matter, but it does not explain every case.
05 · Sleepwalking
What an episode can look like at home
Sleepwalking can be quiet and brief or more complex, so the important issue is not just how odd it looks but whether it creates risk.
Some episodes are mild, such as sitting up, mumbling, or walking to another room. Others may involve dressing, opening doors, moving objects, or trying to use the bathroom.
The person may not answer normally, and they may seem slow, glassy-eyed, or confused. A family member might think they are awake when they are not fully alert.
The biggest concern is safety. Trips, falls, stairs, open windows, doors, and sharp objects can turn a brief episode into an injury.
- The person may not respond in a normal way.
- Episodes can involve more than walking.
- Leaving the house or handling hazards changes the urgency.
06 · Sleepwalking
How to make the sleep area safer
The most useful steps are the ones that reduce injury if an episode happens again.
A safer sleep environment can make a real difference. Keep floors clear, remove cords and loose rugs, move breakable items away from the bed, and keep sharp objects out of reach.
If wandering is a concern, alarms or motion sensors may help alert another person. Gates or barriers can be useful near stairs, and windows and exterior doors should be secured as appropriate for the home.
Families should agree on a calm response. The goal is not to pin the person down or force a confrontation. It is to guide them away from danger and back to bed with as little stimulation as possible.
- Keep the path from bed to door clear.
- Lock or secure access to stairs, windows, and exits as needed.
- Store car keys, weapons, and medications out of reach.
07 · Sleepwalking
When a clinician should evaluate the pattern
New adult sleepwalking, injury, or a pattern that does not look typical should be checked rather than watched passively.
A clinician may want to review sleepwalking if it starts in adulthood, becomes more frequent, causes injury, or begins after a medicine change. That review matters because the episode may be linked to sleep loss, a sleep disorder, a medicine effect, or another medical problem.
The visit usually starts with a sleep history and a list of all medicines and supplements. The clinician may ask about snoring, gasping, daytime sleepiness, fever, alcohol, stress, and what someone else has seen during the episode.
A video of an episode can help if it is available and safe to record. In some cases, a sleep study may be recommended if another sleep disorder is suspected.
- Bring a full medicine list, including over-the-counter products and supplements.
- Describe what happens before, during, and after the episode.
- Mention any snoring, gasping, or daytime sleepiness.
08 · Sleepwalking
Medicines and health problems that can matter
Sleepwalking can be affected by sleep medicines, other brain-active medicines, alcohol, and conditions that interrupt sleep.
Some medicines can make sleepwalking more likely or make sleep behavior less predictable. Alcohol can add to that risk. Because of that, every prescription, over-the-counter product, and supplement should be reviewed if episodes are new or changing.
Other health problems can matter too. Sleep apnea is one example, and mental health conditions such as depression and anxiety can also affect sleep quality. Pain and other illnesses may fragment sleep as well.
Do not stop a prescribed medicine on your own. If timing suggests a medicine may be part of the problem, the prescriber can decide whether a change is needed.
- Review all medicines and supplements with a clinician or pharmacist.
- Tell the prescriber if episodes started after a new drug or a dose change.
- Treating an underlying sleep disorder may reduce episodes.
09 · Sleepwalking
Sleepwalking in children versus adults
Children may have sleepwalking and later outgrow it, but adult-onset episodes deserve a closer look.
Sleepwalking can happen in children, and many children have fewer episodes as they get older. Even so, the episodes still matter because children can be hurt by stairs, windows, doors, or furniture during an event.
In adults, new sleepwalking is less expected. That does not automatically mean something serious is wrong, but it does make a careful review more important, especially if the person snores loudly, is very sleepy during the day, or recently changed medicines.
For both children and adults, the question is the same: is the episode rare and low-risk, or is it part of a pattern that could be causing harm?
- Children still need environmental safety steps.
- Adult-onset episodes should not be dismissed.
- Repeated injury or leaving the home changes the urgency.
10 · FAQ
Questions people ask
What should I write down after a sleepwalking episode?
Write down the time, how long it seemed to last, what the person did, and whether there was injury, leaving the house, or confusion afterward. Also note sleep schedule changes, fever, stress, alcohol, and any new medicines. This helps a clinician look for patterns instead of guessing from a single episode.
Can sleepwalking happen with sleep apnea?
It can. Sleep apnea interrupts sleep and may leave a person with loud snoring, gasping, choking sounds, or major daytime sleepiness. If those signs show up along with sleepwalking, mentioning them matters because treating the sleep disorder may help the overall sleep pattern.
Is it ever okay to leave sleepwalking untreated?
If episodes are rare, the person is not getting hurt, and there are no warning signs, the first step may be home safety and tracking patterns. But if sleepwalking starts in adulthood, becomes more frequent, causes injury, or changes after a medicine change, medical review is the safer choice.
Can fever or illness make sleepwalking worse?
Yes. Fever or illness can disrupt sleep, and disrupted sleep can make episodes more likely in some people. That does not mean every fever will cause sleepwalking, but the timing is useful to note if episodes happen around sickness.
What if the person seems confused after the episode ends?
Some confusion can be part of the episode itself. What is more concerning is confusion that does not clear or seems more than the brief episode. If the person does not seem to return to their usual state, or if there are seizure-like movements, trouble breathing, loss of consciousness, or a serious injury, that is an emergency.
Can stress alone explain sleepwalking?
Stress can make sleep more fragmented and may increase episodes in some people, but it does not explain every case. Sleep loss, illness, alcohol, medicines, and other sleep problems can also contribute, so a full pattern is more useful than blaming one trigger.
11 · References
References and supporting evidence
These sources support the points identified below. Source checking is not clinical approval.
- S1: Sleep DisordersMedlinePlus / U.S. National Library of Medicine
Explains that sleepwalking is a parasomnia and that unusual behaviors can occur during sleep or partial waking. Explains that sleep quality matters, not just sleep duration, and that sleep occurs in stages. Explains why disrupted sleep matters beyond feeling tired the next day. Explains sleep apnea warning signs that should be mentioned when evaluating disrupted sleep alongside sleepwalking. Explains the basic evaluation approach and that a sleep study may be used when a sleep disorder is suspected. Supports the sections describing sleepwalking as a sleep-related behavior rather than a deliberate action.
General information, not a diagnosis. This guide is not a substitute for care from a qualified healthcare professional. For an emergency, call 911 in the US or your local emergency number. Illustrations are conceptual and are not diagnostic images.