Sleep Time Calculator
Know the best possible times to wake up with this free app.
| Category | Price | Seller | Device |
|---|---|---|---|
| Utilities | Free | Recked Software LLC | iPhone, iPad, iPod |
The five stages of sleep, including their repetition, occur cyclically. The first cycle, which ends after the completion of the first REM stage, usually lasts for 90 minutes.
With 8 hours of sleep you typically go through 4-5 cycles a night. Waking up in the middle of a cycle leaves you feeling groggy, but waking up at the end of a cycle leaves you feeling awake and alert. This app gives you recommendations on when to wake up in the morning to decrease the likelihood that you will feel groggy.
