What is REM sleep disorder and how does it affect sleep quality?

Reviewed by Yoshinori Abe, MD

Internal Medicine

REM sleep behavior disorder (RBD) is a condition where people physically act out their dreams during REM sleep, often through talking, kicking, punching, or jumping out of bed. This happens because the muscle paralysis that normally occurs during REM sleep fails, allowing dream movements to translate into real actions. RBD can lead to disrupted sleep, injuries to the sleeper or their bed partner, and may signal underlying neurological conditions.

If you or a loved one notices unusual movements, vocalizations, or violent behaviors during sleep, it's important not to dismiss them. Early identification of RBD can protect you from injury and help detect related health concerns sooner. Take a free, instant, online symptom check to better understand what may be going on and confidently navigate your next steps.

Reviewed for medical accuracy: 07/14/2026

Important Next Steps

Learn if REM sleep disorder needs care Discover likely causes of REM sleep symptoms Find out if REM behavior disorder is serious See OTC options for REM sleep symptoms Find sleep disorder specialists near you Understand home remedies for REM sleep disorder Check if REM sleep disorder affects safety

Not seeing your question? No worries.

Submit your own Question

Explanation

REM sleep behavior disorder (RBD) is a condition where people act out their dreams during sleep. Normally, when we sleep, our bodies stay still, even if our minds are dreaming. But in RBD, this doesn't happen, and people might move around, talk, or even hit.

How It Affects Sleep Quality:

Interrupted Sleep: Because people with RBD move a lot during sleep, it can wake them up or disturb their sleep.
Safety Concerns: Acting out dreams can lead to injuries to the person or their bed partner.
Daytime Sleepiness: Poor sleep at night can make people feel tired during the day.

Important Notes:

RBD can be a sign of other health issues, so it's important to talk to a doctor if you think you have it.
If you're experiencing unusual sleep symptoms or have concerns about your health, check your symptoms with a free online assessment to help you understand what might be happening.

Understanding RBD is important because it affects how well people sleep and can sometimes be linked to other health problems. It's important to seek help if you notice these symptoms.

(References)

Dauvilliers Y, Schenck CH, Postuma RB, Iranzo A, Luppi PH, Plazzi G, et al. (2018). REM sleep behaviour disorder. Nature reviews. Disease primers, 30166532.
Sobreira-Neto MA, Stelzer FG, Gitaí LLG, Alves RC, Eckeli AL, & Schenck CH. (2023). REM sleep behavior disorder: update on diagnosis and .... Arquivos de neuro-psiquiatria, 38157884.
Rodriguez CL, Jaimchariyatam N, & Budur K. (2017). Rapid Eye Movement Sleep Behavior Disorder: A Review .... Chest, 28322726.

Thinking about asking ChatGPT?Ask me instead

Tell your friends about us.

We would love to help them too.

For First Time Users

What is Ubie’s Doctor’s Note?

We provide a database of explanations from real doctors on a range of medical topics. Get started by exploring our library of questions and topics you want to learn more about.

Was this page helpful?

Purpose and positioning of servicesUbie Doctor's Note is a service for informational purposes. The provision of information by physicians, medical professionals, etc. is not a medical treatment. If medical treatment is required, please consult your doctor or medical institution. We strive to provide reliable and accurate information, but we do not guarantee the completeness of the content. If you find any errors in the information, please contact us.