Rapid eye movement sleep, also known as REM sleep, is one of the 4 stages of sleep (along with wake, light, and deep sleep) that your body cycles through on a nightly basis. The REM stage is when you get your “mentally restorative” sleep, and it is when the brain converts short-term memories from the day into long-term ones.
We’ll discuss the value of REM sleep and how much is normal, then share a number of things you can do to improve it.
REM sleep is essential for keeping your brain and body healthy, and a sufficient amount is required in order to perform at your best. It also plays an important role in mood regulation as well. Additionally, research suggests when people are deprived of REM sleep they are less capable of remembering things they’ve learned prior to falling asleep.
“If you’re not getting enough REM sleep, everybody knows what a cranky toddler looks like. We control it better, but adults have that same thing.” – Podcast 55: How Sleep Impacts Performance
Adults should aim to spend about 20-25% of their time asleep in REM sleep, with 90 minutes being what is commonly suggested. The chart below shows the average amount of nightly REM sleep for all people tracking it with WHOOP. The mean for everyone is 105 minutes, with the middle 50% averaging 87-124 minutes of REM per night.
Learn More: How Much REM Sleep Should You Get a Night?
If you have concerns you’re not getting enough REM sleep, these are a few potential causes (outside of sleep disorders) you should make efforts to avoid that often correlate with decreases in WHOOP members’ REM:
“Alcohol actually disproportionately crushes REM sleep. You miss your first big REM episode, you miss a lot of slow-wave sleep, you just get a lot of light sleep. You don’t achieve what the point of sleep is actually.” – Podcast 43: Alcohol’s Impact on Sleep and Performance
Generally speaking, anything you can do to improve your overall sleep quality, habits and behaviors will benefit your REM cycle too. The most basic thing is to simply spend more time in bed. Here are 45 tips to sleep better, plus some other suggestions provided by the National Sleep Foundation.
Our members have the ability to log various sleep-promoting activities in the WHOOP Journal. They can then see the impact these behaviors have on their REM sleep (and other metrics) in Monthly Performance Assessments.
What follows is a list of several things WHOOP members often find increase their REM sleep time:
Learn More: How to Get the Best Sleep (Naturally and with Supplements)
We’ve found one thing in particular that really stands out regarding how to increase REM sleep: It’s a concept we call sleep consistency–going to bed and getting up at similar times each day. Your body is able to function more efficiently on a regular schedule, and that applies to your sleep schedule too.
An analysis of sleep consistency data from 25,000 WHOOP members showed a substantial rise in nightly REM sleep duration as sleep consistency percentage went up:
The WHOOP app monitors your sleep consistency from night to night, and provides in-depth analysis of it in Weekly Performance Assessments.
Learn More: Maintaining Circadian Rhythm with Sleep Consistency
WHOOP tracks your sleep in detail each night, including precisely how much time you spend in REM and other sleep cycle stages. The app features a Sleep Coach that suggests optimal daily bed and wake times to boost your sleep efficiency and better enable you to get all the REM sleep you need. It also offers insights and feedback based on your data trends and behaviors to help give you a more comprehensive understanding of what you can do to increase your REM sleep.
Learn More: How Much Time Should You Spend in Each Stage of Sleep?