The first stage is the transitional phase between wakefulness and sleep, while the second stage comprises the largest proportion of adult sleep, but the first phase of stage two sleep is usually pretty short, Espie says.
The brain alternates between NREM and REM sleep in what is known as a sleep cycle. Play icon The triangle icon that indicates to play The stages of NREM sleep are defined by changes in brain activity and generally reflect increasing sleep depth as one progresses through each of the three stages, he explains. As the name implies, this is when you're in a deep slumber and it's hard for someone to wake you up. Deep sleep is the third stage of NREM sleep, when the brain’s electrical activity slows down and settles into a harmonized rhythm, says Colin Espie, PhD, a professor of sleep medicine in the department of clinical neurosciences at the University of Oxford and co-founder and chief scientist of Big Health, which offers digital therapeutics for insomnia and anxiety. There are two states to shut-eye: rapid-eye-movement (REM) sleep and non-REM (NREM) sleep (which consists of three stages and takes place first).
Rem sleep vs deep sleep vs light sleep how to#
How to get more deep sleep is probably not high on your priority list, but it should be.įirst, let's get to know your sleep better. One that has become particularly buzzy lately is deep sleep. Turns out when you talk about sleep, there are several phases and stages involved. Restful sleep isn’t a myth, even though it might seem all but elusive for many people. If it seems like you’ve forever been chasing more and better sleep, you’re not alone.
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