😴 Sleep calculator
The best bedtime — wake at the end of a sleep cycle, not mid-cycle.
💤 Bedtimes
Sleep cycles of 90 min + 15 min falling asleep:
6 cycles (9 h)
5 cycles (7,5 h)
4 cycles (6 h)
The 90-minute rule is an average — your rhythm may differ. More important: regular times.