Calcolatrice Cicli del Sonno — Formula
## Sleep Cycles
One complete sleep cycle lasts approximately **90 minutes**. Most adults need 5-6 complete cycles per night.
| Cycles | Duration |
|---|---|
| 4 cycles | 6 hours |
| 5 cycles | 7.5 hours (recommended) |
| 6 cycles | 9 hours |
Waking between cycles (rather than mid-cycle) helps you feel more refreshed.
One complete sleep cycle lasts approximately **90 minutes**. Most adults need 5-6 complete cycles per night.
| Cycles | Duration |
|---|---|
| 4 cycles | 6 hours |
| 5 cycles | 7.5 hours (recommended) |
| 6 cycles | 9 hours |
Waking between cycles (rather than mid-cycle) helps you feel more refreshed.
Esempio Risolto
Waking up at 7:00 AM.
- Wake time = 7:00 = 420 minutes
- 6 cycles: 420 - 540 = -120 min => (-120 + 1440) / 60 = 22.0 (10:00 PM)
- 5 cycles: 420 - 450 = -30 min => (-30 + 1440) / 60 = 23.5 (11:30 PM)
- 4 cycles: 420 - 360 = 60 min => 60 / 60 = 1.0 (1:00 AM)