Sleep Efficiency Calculator

Compare estimated time asleep with total time in bed. This is a simple way to separate sleep opportunity from sleep actually obtained.

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Formula

Sleep efficiency = estimated time asleep / time in bed x 100. The result is only as good as the sleep estimate you enter.

ScenarioWhat it may suggest
High time in bed, low sleep timeSleep opportunity is not converting into sleep.
Long sleep latencyThe wind-down routine or schedule timing may need review.
Many awakeningsSleep continuity may be the better next question.

Use It With Care

This is not a clinical insomnia test. It is a private planning tool for noticing whether sleep timing, awakenings, or time in bed deserves a closer look.