# Sleep & Wellness

Sleep runs in cycles of roughly 90 minutes, so bedtime and wake-up planners count back from an alarm in whole cycles. Sleep debt, caffeine timing and paced breathing or relaxation exercises support rest and recovery. Cycle length varies between people and across the night, so treat cycle-based times as a starting point rather than a rule.

## Tools

No tools are available here yet.

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Category: [Health & Fitness Calculators](https://techolm.com/health-calculators)