5 Sleep Phases THE 5 SLEEP PHASES. Phase 1 - 5-15 minutes ◦ Light Sleep and still aware of a presence. ◦ While nerves are starting to down fire, it's common to experience the odd neural jolt, or kick! ◦ Airways are still very much open and snoring is unusual. Phase 2 - 5-15 minutes ◦ First a drop in body temperature and heart rate. ◦ Eyes stop moving and brain waves are transitioning to delta waves. Phase 3 - 3 hours ◦ Brain waves switch solely to Delta waves resulting in a deep sleep. ◦ Postural muscles loose integrity as nerves switch off. ◦ Phasic (breathing muscles) also reduce firing resulting in some people subconsciously searching for air - enter; snoring. ◦ Body repairing starts while building speed towards phase 4. Phase 4 - 3 hours ◦ Much the same as Phase 3, only more pronounced. ◦ Body temperate drops further still. ◦ You should find it difficult waking up during these phases. ◦ Should you find yourself waking up in Phase 4 - 'Consider the Dream On Project' Phase 5 - 1 hour ◦ Rapid eye movement and likely a time for dreams. ◦ You'll now start to move around a little. ◦ Fat burning will start to slow with the introduction of blood sugar. ◦ Finally, cortisol will now be reintroduced and we start again.
