Sleep Cycle Calculator

Calculate the best times to wake up based on natural 90-minute sleep cycles.

Rest Window • Sleep Cycles

Planning Style

Ready By (functional by this time)

In Bed At (when you get in bed)

Advanced Options

Fall asleep buffer (minutes)

Wake buffer (minutes)

Cycle length (minutes)

Number of options

Add a time to see cycle options. If you're starting now, tap Use Now.