Sleep Calculator

A sleep cycle lasts about 90 minutes and includes both light and deep sleep stages. Waking up at the end of a cycle helps you feel more refreshed and alert.

The calculator assumes it takes about 15 minutes to fall asleep. For optimal rest, aim for 5-6 complete sleep cycles (7.5-9 hours).

Tip: Try to maintain a consistent sleep schedule, even on weekends, to regulate your body's internal clock.