Unlock Sleep Stages for Better Health and Energy
Sleep consists of four stages: light non-REM (N1 and N2), deep non-REM (N3), and REM, cycling throughout the night to support physical repair, cognitive function, and emotional processing.
- Transition to sleep with theta waves, easy to awaken, lasts 5-10 minutes.
- Features sleep spindles and K-complexes, supports memory and learning, about 50% of sleep.
| Stage | Scientific Observation | Role in Health | ||
|---|---|---|---|---|
| N1 | Slow theta waves, easy awakenings | Transition to sleep, initial relaxation | ||
| N2 | Sleep spindles and K-complexes | Memory consolidation and learning | ||
| N3 | Slow delta waves, hard to awaken | Physical restoration and immune support | ||
| REM | High brain activity, rapid eye movements | Dreaming, emotional processing, and mood regulation | ||
| Cycles | Imbalances lead to disorders | Improves energy and prevents insomnia/apnea |