sleep how find much need
The Takeaway. 1  Although there is some genetic variation, most adults need between 7.5 to 8.5 hours of sleep per 24-hour period to function optimally. 2  You can find your optimal sleep time if you set aside several days (perhaps during a vacation) to allow yourself to sleep as long as possible. Once you know how much sleep you need, it's important to allot that amount of time in your daily schedule for sleep.