How much sleep do you need?
You feel like you’re always going to bed early, but when your alarm goes off, it’s hard to open your eyes and you’re in a fog all day. You may feel like no matter how much sleep you’re getting, you’re still tired. But how do you know how much sleep you need?
How much sleep you need varies by age. While newborns under three-months-old may need up to 19 hours of sleep and adults over 65 may need as little as five hours, most adults need about seven to nine hours of sleep a night, according to the National Sleep Foundation. While not getting enough sleep can hurt your health in these sneaky ways, oversleeping and constantly being tired can be a sign of a problem.
“Oversleeping means that you are sleeping for more than ten hours on a consistent basis,” says Conor Heneghan, PhD, director of research and algorithms at Fitbit. “Oversleeping has been correlated with certain health conditions, such as depression, but it is not a known cause of any health disorders. While irregularities in the body’s sleep clock may play a role in mood, returning to a consistent sleep cycle is a focus area to get the body back on track.”
If you’re getting enough sleep on a good schedule or are even oversleeping and still feel tired, it could be a sign of health problems.
You’re tired because…you’re oversleeping on weekends
You may think skimping on sleep during the week and oversleeping during the weekends will help you feel well rested, but it’s actually hurting your sleep. This habit is called “social jetlag” which is brought on by shifts in sleeping schedule during the week versus on the weekends. “While the recommended average sleep time for adults is seven to nine hours every night, often we may try to catch up on sleep during the weekends,” Heneghan says. “Your body will attempt to recover from the effects of sleep deprivation by having “rebound” sleep − typically associated with longer overall sleep time, increased deep and REM sleep, and reaching the REM sleep state more quickly. However, oversleeping can offset your cycle and has been linked to other health risks.”