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Health
Sleep Duration Check
Check the time between bedtime and wake time against a sleep target you choose yourself.
Duration compared with your own target
This check calculates elapsed time only. The target is whatever number you enter; the tool does not diagnose sleep problems or prescribe a sleep duration.
How this resource works
Sleep duration is the elapsed time from bedtime to wake time, treating wake times earlier than bedtime as occurring the following day. Difference = duration − entered target.