Sleep Calculator
Bedtime / Wake-time suggestions with 90-minute sleep cycles. Enter either a Bedtime or a Wake-up time (or both). Adjust "Time to fall asleep" if you usually take longer.
Based on 90-min sleep cycles (approx). Adjust latency for personal accuracy.
Recommended Sleep Cycles
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Total Sleep (approx)
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Quick Tips
- Avoid screens 30 mins before bed.
- Use alarm times that align with sleep cycles.
- Keep bedroom cool and dark.
Suggested Times
These times assume you fall asleep after the latency you entered and wake at the end of a cycle.