LESSON 1 · Sleep Like Your Life Depends On It
Optimizing Your Sleep Cycles
Better sleep architecture means more restoration in the same hours:
- Keep a consistent schedule — your brain preps for deep sleep based on your usual bedtime
- Dim the lights before bed — bright evening light delays the circadian signal that ushers in deep sleep
- Avoid alcohol before bed — it adds deep sleep early but fragments REM later in the night
- Cool your room to 65-68F — the drop in body temperature triggers deep sleep
- Get morning sunlight — it sets your circadian clock and improves cycle timing.