![]() The most important sleep stage for memory consolidation and overall sleep quality is slow-wave sleep (SWS). You get your deepest sleep during N3 sleep, which means this stage is crucial to waking up feeling well-rested and like you got a good night’s sleep. Why Increasing Slow-Wave Sleep Is Essential for Good Sleep It’s important to get adequate N3 sleep each night- decreased slow-wave sleep contributes to light sleep, sleep disturbance during the night, and sleep deprivation. Like the name suggests, your eyes move rapidly, and your brain activity, heart rate, and breathing all increase. Stage 4 (N4): Rapid eye movement (REM) sleep that lasts between ten minutes and one hour.Your heart rate and breathing are at their slowest, and your body repairs itself and prepares for the next day. Stage 3 (N3): Non-REM sleep that lasts between twenty and forty minutes- slow-wave sleep occurs here.Your body temperature reduces, your heart rate and breathing slow further, and eye movement stops. Stage 2 (N2): Non-REM sleep that lasts between ten minutes and one hour.Your muscles start to relax, and your heartbeat and breathing slow down. Stage 1 (N1): Non-REM sleep that lasts between one and five minutes.Your sleep cycle each night is broken up into four stages: Dreaming and conditions like sleepwalking can occur during this stage of brain activity. In the NREM phase, there is no eye movement, your breathing and heart rate slow, and your brain quiets down. It’s marked by high-amplitude, low-frequency brain waves. Slow-wave sleep (SWS), also known as N3 sleep or delta sleep, is the deepest phase of NREM sleep, or non-rapid eye movement sleep. ![]() ![]() So let’s take a look at what slow-wave sleep is, and the role it plays in getting a good night’s sleep. Slow-wave sleep helps to ensure that you get the deep, restful sleep you need to feel refreshed in the morning and ready to take on the day.Īs you already know, there’s more to getting a good night’s sleep than just closing your eyes at night and waking up in the morning. Sleep is a key biological function- everything in your body and your brain rely on adequate sleep to work properly. Slow-wave sleep is a crucial part of getting the rest you need each night, but do you know why it’s so important?
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