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![]() Your core body temperature is very important for getting the deep slow-wave sleep you need each night. Get More “Deep” Slow-Wave Sleep by Sleeping Cooler For example, you may show up to work in the morning asking the same questions repeatedly, or find that a simply tasks that normally takes an hour complete seems to take an entire afternoon. ![]() This means memory and problem-solving difficulties, slower reaction time, and other problems are inevitable the next day (even when you try napping to make up for poor sleep). SWS suppression contributes to cognitive impairment. Adequate slow-wave sleep is vital to morning alertness and wakefulness. This is why it’s so important to get a full night of quality sleep each night. While the idea of a short nap may sound like a restful solution to catch up on lost sleep, your body does not have an opportunity to fully recover from the lack of deep sleep you experienced the night before. In total, they still performed worse than the participants who slept normally. However, increases in slow-wave sleep in the nap group reduced errors by around 4 percent for every 10 minutes of SWS. The group that took naps still experienced the ill effects of sleep deprivation and made significantly more errors than those who got normal sleep the previous night. The third group did not sleep or nap at allĪll participants completed more cognitive tasks the next morning.The second group stayed at the lab overnight and could take either a 30 or 60-minute nap.Īfter completing initial cognitive tasks the participants were separated into three groups: The research found that 30-60 minute naps did not show any measurable effects in counteracting the effects of sleep deprivation.Īlthough participants getting slow-wave sleep during their naps helped reduce sleep deprivation-related impairments, it wasn’t enough to compensate for poor sleep the night before. New Research: Naps Don’t Relieve Sleep DeprivationĪ recent study from the Michigan State University Sleep and Learning Lab examined the role that short naps played in reducing the cognitive deficits associated with sleep deprivation. ![]() Not only is stage 3 when you get your deepest sleep, but there are also numerous psychological and physical health benefits to getting adequate amounts of slow-wave sleep. If you wake up feeling tired and sluggish, you likely had poor or disrupted slow-wave sleep. 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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