Step-by-step instructions
- Enter or select Time asleep.
- Enter or select Time in bed.
- Tap Calculate.
- Review the result shown directly below the calculator.
Sleep Efficiency Calculator
Calculate time asleep as a percentage of time in bed.
How to use the Sleep Efficiency Calculator
Calculate time asleep as a percentage of time in bed.
What the inputs mean
- Time asleep
- Enter the requested time or duration.
- Time in bed
- Enter the requested time or duration.
Formula or calculation method
Time asleep is divided by Time in bed and the result is multiplied by 100 to express the relationship as a percentage.
Example
For example, if Time asleep is 25 and Time in bed is 100, the calculated result is 25%.
How to understand the result
The result is a percentage. A higher or lower percentage has different meaning depending on the calculator, so compare it with the goal, limit, benchmark, or historical value relevant to your situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.