Calculate your optimal sleep times for a refreshed morning

Sleep Calculator

Find the best times to go to sleep or wake up based on sleep cycles.

Your Ideal Sleep Times

Based on 90-minute sleep cycles, you should try to fall asleep at one of these times:

Sleep Tip

A consistent sleep schedule helps regulate your body's internal clock and can help you fall asleep and stay asleep for the night.

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Understanding Sleep Cycles

Sleep Stages

Sleep consists of multiple cycles of light sleep, deep sleep, and REM sleep, each lasting about 90 minutes.

Why It Matters

Waking up between cycles (after 6, 7.5, or 9 hours) helps you feel more refreshed and alert.

Sleep Tips

Avoid screens before bed, keep your room cool and dark, and establish a consistent sleep routine.