Locations:
May 5, 2021/Living Healthy/Sleep

Everything You Need to Know About Sleep Drunkenness

How this common sleep problem causes confusion and strange behavior upon waking

man too spleepy for work

You’re sound asleep when your alarm goes off or your partner tries to wake you. You open your eyes and get out of bed, but you’re not fully awake. You wander around, say strange things or give blunt answers when someone talks to you.

Advertisement

Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy

And when your partner mentions your behavior later, you have no memory of it. What happened? You were probably sleep drunk. And you’re not alone — this condition affects at least 1 in 7 people.

Sleep specialist Juancarlo Martinez-Gonzalez, MD, explains this common condition and what you can do about it.

What is sleep drunkenness?

Sleep drunkenness is a casual term for confusional arousal, which is a type of parasomnia. A parasomnia is an unusual behavior that happens while you’re asleep or just waking up.

Confusional arousal is a problem with sleep inertia when your brain transitions between sleeping and waking up. When you’re sleep drunk, your brain doesn’t make the transition to wakefulness. Your conscious mind isn’t fully awake, but your body can get up, walk and talk.

“People who have confusional arousal might act confused or have trouble speaking,” says Dr. Martinez-Gonzalez. “They might appear to be drunk, but they’re not.”

Sleep drunk episodes may last for just a few minutes or up to an hour. It can affect people of all ages, from children to adults.

Is being sleep drunk dangerous?

If you’ve ever been sleep drunk, your partner or family member may have gotten a laugh out of your unusual behavior. “If it happens once a year and no one gets hurt, you probably don’t need treatment,” says Dr. Martinez-Gonzalez.

Advertisement

But don’t take this condition lightly if it happens frequently. In rare cases, people have harmed themselves or others while sleep drunk. Some people have tried jumping out of a window, and others have shown violent or aggressive behavior.

It can also interfere with your relationships if it bothers your partner or family members. “Some people end up sleeping in separate rooms, and that can have a negative impact on you and your partner,” says Dr. Martinez-Gonzalez.

What causes sleep drunkenness?

In many cases, there is no obvious cause. But you may be more likely to experience sleep drunkenness if you:

Diagnosing sleep drunkenness

Most people have no memory of sleep drunk episodes, so they probably don’t know to seek help. “Usually, people find out about this issue through their partner or family member,” says Dr. Martinez-Gonzalez. “If your family member tells you that you act strange when you wake up, and you don’t remember it, see your doctor.”

There is no specific test to diagnose sleep drunkenness. But your doctor may review your medical history, including any health conditions you have and medicines you take. A medical history helps your doctor determine an underlying cause for the issue.

Some people may need a sleep study, which can diagnose sleep disorders. During a sleep study, you’ll wear special sensors that measure your brain waves, movements, heart rate and other health indicators while you sleep.

How is sleep drunkenness treated?

For some people, healthy sleep habits can eliminate sleep drunk episodes. “A regular sleep schedule is one of the best ways to improve your sleep and reduce the chance of having confusional arousal,” says Dr. Martinez-Gonzalez. “Have a consistent bedtime and wake-up time and stick to it every day. Most adults need at least seven hours of quality sleep each night on a regular schedule.”

Other ways to get better sleep (and avoid sleep drunkenness):

  • Avoid alcoholic beverages, especially close to bedtime.
  • Turn off tablets, smartphones, computers and other screens at least an hour before bed.
  • Keep your room dark, quiet and cool.
  • Avoid caffeinated beverages several hours before bed.

If these steps aren’t enough and you’re still having sleep drunk episodes, talk to your doctor. Some people may need medication to reduce or eliminate the issue. Or you might have an undiagnosed sleep disorder or other health condition that needs care.

Advertisement

“Confusional arousal is common, but you don’t have to live with it,” says Dr. Martinez-Gonzalez. “Treatment can help you get better sleep and wake up feeling like yourself again.”

Advertisement

Cleveland Clinic icon
Health Essentials logo
Subscription icon

Better health starts here

Sign up for our Health Essentials emails for expert guidance on nutrition, fitness, sleep, skin care and more.

Learn more about our editorial process.

Related Articles

Person clutching pillow in the night from a stressful dream of someone falling in the background through clouds and doorway
September 23, 2025/Brain & Nervous System

Anxiety Dreams: Why We Have Them and How To Stop Them

Managing stress can help you sleep more soundly

Person in bed experiencing nightmares
May 22, 2024/Sleep

7 Reasons You’re Having Nightmares

Stress, alcohol, sleep apnea and (you guessed it!) scary movies are a few common causes of bad dreams

graphic of woman meditating on a bed
March 27, 2023/Sleep

How To Stop Your Mind From Racing and Get To Sleep

Tame racing thoughts with breathing exercises, screen time limits and connecting to your body

sleep paralysis and demons
January 14, 2021/Sleep

What You Should Know About Sleep Paralysis and ‘Sleep Demons’

The science between two terrifying, sleep-related events

woman walking from darkness into light
November 16, 2020/Sleep

What to Do If You or Someone Else Is a Sleepwalker

Signs, causes and ways to address this problem

Wife watching TV while husband sleeps on her shoulder in the afternoon
February 22, 2019/Sleep

Falling Asleep Too Early? It Could Be Advanced Sleep Phase Disorder

Tips for readjusting your sleep cycle

Teenager in bed with covers pulled up to their eyes, looking worried
September 25, 2026/Children’s Health

Are ‘Wet Dreams’ Normal and Healthy?

Nocturnal emissions are a natural part of growing up and nothing to worry about

Person setting down a bottle of sleep medication on their nightstand, next to glass of water and clock
September 4, 2026/Sleep

Does Magnesium Help You Sleep Better?

There’s limited research on whether the supplement can help you snooze — adopting proven sleep habits may be a better place to start

Trending Topics

Two women briskly walking in a park

Can Exercise Reduce Your Risk of Breast Cancer?

Managing your weight through physical activity may lower your chances of getting this common cancer

Person wrapped in blanket on couch, blowing their nose, box of tissues and mug of warm drink nearby

Flu Season: A Timeline for the Start, Peak and End

It typically starts in October and winds down in early spring, with cases at their highest in the middle of winter

Person sitting in driver’s seat of car, with eyes closed and head back

Driving Anxiety: Why It Happens and How To Cope

Anxiety disorders, health conditions and past trauma can make driving nerve-wracking — help is available

Ad