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Sleep Cycle Calculator

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Sleep Cycle Calculator

Find the bedtimes that let you wake up at the end of a full 90 minute sleep cycle.

Input

Fill in the fields below, then run the tool.

Wake-up time

Maximum cycles

Processed on the server and never stored. Press Ctrl/⌘ + Enter to run.

Result

Results appear here

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The result appears here

About this tool

Find the bedtimes that let you wake up at the end of a full 90 minute sleep cycle.

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Biorhythm Calculator

Chart the physical, emotional and intellectual biorhythm cycles for a given day.

BMR and TDEE Calculator

Estimate the basal metabolic rate and the daily energy expenditure from body metrics and activity level.

Pregnancy Due Date Calculator

Estimate the due date and the trimester boundaries from the first day of the last period.

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Version 0.1.0

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