Stages of Sleep: Light, Deep, and REM Explained
Your night is a journey through different zones of restoration. Here's your roadmap.
The 4 Stages
- N1 (Light): Transition from wakefulness
- N2 (Light): Body temperature drops
- N3 (Deep): Physical restoration
- REM: Mental and emotional processing
Did You Know? Alcohol suppresses REM sleep, causing poorer memory.