SleepCycle - Sleep Calculator play online

Tired of waking up exhausted? Can't get yourself out of bed at a reasonable hour in the morning? You don't have to set up multiple alarms anymore!

Each and every night, your brain transitions through different stages of sleep.

Each stage has different effects on your body - from physical restoration during deep sleep, to memory consolidation during dreams.

All together, these stages add up to about 90 minutes, making up one complete sleep cycle.

SleepCycle calculates the best hours and helps you wake up between your sleep cycles.

SleepCycle can calculate when to wake up, when to go to sleep and when to wake up if you sleep now. You can also set up an alarm with SleepCycle.

Set a sleep cycle alarm that will help you Wake Up at the best possible time in your sleep cycle so that you wake up refreshed.