“These findings further support the general recommendation that most adults need to consistently sleep 7 to 9 hours per night, and illustrate why a good night’s rest is so important for your overall well-being,” says Fitbit Advisory Panel sleep expert Michael T. And that’s not necessarily a bad thing-a lot of body maintenance happens during light sleep. Light sleep seems to act as a filler: You get more when you log less than 7 hours or more than 9 hours of sleep a night. Not getting enough REM sleep can negatively impact your short-term memory, cell regeneration, and mood. Deep sleep is important for many physical processes such as cell regeneration, human growth hormone secretion, and feeling refreshed.įitbit data shows waking up earlier than usual is what impacts REM sleep, which occurs more at the end of the night. People who sleep 5 hours or less a night deprive their body of the opportunity to get enough deep sleep, which occurs near the beginning of the night. In fact, 7.5 hours of sleep is the point at which you typically start getting less percentage of REM and more light. If you tend to fall short as well, try to bank those extra minutes: Fitbit data confirms that sleeping 7 to 8 hours gives you the highest combined percentage of deep and REM sleep. That said, 6 hours and 38 minutes is still shy of the 7+ hours the the CDC recommends adults get. “It’s perfectly normal to have periods of restlessness- 10 or even up to 30 could be normal for you.” (Here’s when restlessness might be more concerning. “Sleep is not completely still,” says Fitbit Advisory Panel sleep expert Michael Grandner, MD, director of the Sleep and Health Research Program at the University of Arizona in Tucson. That may seem like a lot, but it’s actually pretty common. The remaining 55 minutes is spent restless or awake. The average Fitbit user is in bed for 7 hours and 33 minutes but only gets 6 hours and 38 minutes of sleep. Open up your sleep log in the Fitbit app to see how your personal stats compare. With that in mind, researchers tapped Fitbit’s longitudinal sleep database-the most extensive in the world-to analyze millions of nights of Sleep Stages data* to determine how age, gender, and duration affect sleep quality. “The ability to easily track your sleep not only helps individuals better understand their own sleep, it also unlocks significant potential for us to better understand population health and gain new insights into the mysteries of sleep and its connection to a variety of health conditions,” says Conor Heneghan, Ph.D., lead sleep research scientist at Fitbit. The result? Data that empowers Fitbit users to take control of their sleep quality and allows Fitbit scientists to dig deeper into the health effects of sleep. "The longer you spend in deeper sleep, the more refreshed you'll feel in the morning," she says.The launch of Sleep Stages was a huge step forward in sleep research-for Fitbit users and scientists.Īvailable on Fitbit Alta HR, Blaze, and Charge 2, Sleep Stages uses motion detection and heart rate variability to estimate the amount of time users spend awake and in light, deep, and REM sleep each night. But, in general, people alternate among several different levels of non-REM and REM sleep every night. Krahn says not everyone goes through all of the stages. "They're paralyzed, and that's actually felt probably to be a rinsing function - to clear the brain of toxins and byproducts that have collected during the waking day."ĭr. "Things speed up except a person cannot move," says Dr. The final stage is REM sleep, which is typically when you dream. "And that just allows the body a chance to recover from the busy day."
"When we're in deep sleep, our heart rate and our breathing really slows down," says Dr. Krahn says the three types of non-REM, which stands for rapid eye movement, include level one, which is light sleep level two, intermediate sleep and level three, deep sleep. Lois Krahn, a Mayo Clinic sleep medicine specialist.ĭr. "We basically divide sleep into wake, non-REM - three types - and REM sleep," says Dr. When your head hits the pillow, your body can go through several stages of sleep. Journalists: Broadcast-quality video pkg (1:00) is in the downloads.
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