Sleepwalking

Also called Somnambulism

Sleepwalking is when someone walks or does other activities while they are still asleep. It usually happens during deep sleep, early in the night. It is most common in children and they usually grow out of it, but adults can also sleepwalk. Not getting enough sleep, stress, fever, alcohol and some medicines can trigger it.

Last updated Nov 9, 2026

What it is

Most people do not need treatment. Keeping the home safe, such as locking doors and windows and removing hazards, is important.

If it happens a lot or is dangerous, a specialist may suggest therapy or, rarely, medicines.

Common signs

  • Walking or moving around while asleep
  • Eyes open with a glassy look
  • Being hard to wake
  • Confusion when woken
  • Not remembering it in the morning

How it is usually diagnosed

  • Questions about sleep, usually with someone who has seen the sleepwalking
  • Sometimes a sleep study

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • GP notes
  • Sleep clinic letters
  • A sleep diary

Questions to ask your doctor

  • What might be triggering it?
  • How can we keep the home safe?
  • When is it worth seeing a specialist?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • An injury during sleepwalking, or a seizure: get urgent help, call 112 if serious

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

Sources