Light Sleep
Sleep h duration
Duration of light sleep stages (N1 + N2) in hours.
Detailed Description
N1 and N2 NREM stages — transitional phases between wakefulness and deep sleep. Make up 50–60% of the night. N2 is important for motor learning and sensory processing (sleep spindles). An increase at the expense of deep/REM indicates fragmented sleep.
How to Improve
- Increasing deep and REM naturally balances light sleep proportion
- Reduce bedroom noise (earplugs, white noise)