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Clinical Sleep Diagnostics
Sleep architecture (the cycles of Light, Deep, and REM sleep) dictates glymphatic clearance in the brain, hormone regulation, and metabolic recovery.
Polysomnography vs. Wearables
While Oura and Whoop are excellent for tracking resting heart rate and HRV, they are fundamentally inaccurate at staging sleep compared to clinical EEG.
| Sleep Stage | Primary Function | Target % of Night |
|---|---|---|
| Deep (N3) | Physical recovery, HGH release, glymphatic wash | 15-20% |
| REM | Memory consolidation, emotional regulation | 20-25% |
Common Mistakes
- Ignoring Sleep Apnea: Undiagnosed Obstructive Sleep Apnea (OSA) destroys metabolic health. A simple at-home WatchPAT study can detect it.
Frequently Asked Questions
Q: Does alcohol ruin sleep?
A: Yes. It might help you lose consciousness faster, but it severely fragments sleep architecture and suppresses REM.