Sleep Calculator
Calculate optimal bedtimes, wake-up times, or total sleep based on sleep cycles. Enter your time below.
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Sleep Tips
Sleep Cycles
A full sleep cycle is about 90 minutes. Waking up at the end of a cycle helps you feel more refreshed.
Healthy Sleep
Most adults need 7-9 hours of sleep. Try to keep a consistent schedule for best results.
Recommendations
Avoid screens before bed, keep your room cool and dark, and wind down before sleeping.