Sleep debt
Hours short of the sleep you wanted, over a run of nights.
Open a calculatorSleep cycles
Each cycle is treated as 90 minutes. The clock adds or subtracts those blocks and the minutes needed to fall asleep. Real sleep is rarely this regular. This is a planning grid, not clinical advice.
min
4 cycles
05:15
5 cycles
06:45
6 cycles
08:15
6 cycles: 08:15
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An educational estimate. Not medical, tax or credit advice.