Sleep Calculator

Human sleep consists of two phases: REM sleep (~ 20 minutes) and slow sleep (~ 2 hours). These phases are constantly alternating. During slow sleep, the human body recovers, during fast sleep it tests internal systems and rests. During REM sleep, a person may toss and turn or even mumble something, since the brain is in an active state. It is the easiest and most pleasant time to wake up at this time. This online calculator will help you calculate the time of your REM sleep. The best sleep is 5-6 complete cycles. Calculate how long to set your alarm to get a good rest. Sleep is a cyclical phenomenon. It consists of 5-6 time slots of about 90 minutes each. At the beginning of the cycle, we fall asleep, closer to the middle, we sleep soundly. And by the end, the body is ready to wake up easily - from the alarm clock or, for example, sunlight.

The sleep calculator will correctly calculate the time, phase and cycle of sleep. Thanks to the service, you will find out what time to go to bed and how many hours a day to devote to sleep. To get enough sleep, set the time at which you plan to fall asleep. The calculator will immediately calculate your wake-up hours. The program also has an inverse function - determining the time to fall asleep depending on the time when you need to wake up. Set the wake-up time, the service determines when to go to bed.