The Five Stages of Sleep

The Five Stages of Sleep

1. Stage 1

   • Preparing to drift off into sleep

2. Stage 2

   • Last about 20 seconds, brain begins to produce activities such as Sleep Spindles
   • Body temperature drops and heart rates slow down

3. Stage 3

   • Deep, brain waves occur
   • Transitional period between heavy and light sleep

4. Stage 4

   • Deep sleep lasting about 30 minutes
   • Sleep walking and bed wetting usually occur at the end of this stage

5. Stage 5

   • REM sleep occurs
   • Dreaming occurs, and muscles become more relaxed as there is an increase in brain activity