In what order do the sleep stages occur?
Here’s a little more about the sleep stages!
Sleep Stages 1 & 2
During early, light sleep (stages 1-2) the brain enters a high-amplitude, slow, regular wave form called theta waves (5-8 cps). A person who is daydreaming shows theta activity.
Sleep Stages 3 & 4
During deepest sleep (stages 3-4), brain activity slows down. There are large-amplitude, slow delta waves (1.5-4 cps) in this sleep stage.
Sleep Stage 5
This stage of sleep is REM sleep. A person during this sleep stage exhibits Rapid Eye Movements and reports vivid dreams. After reaching the deepest sleep stage (4), the sleep cycle starts moving back towards stage 1. Although still asleep, the brain engages in low-amplitude, fast and regular beta waves (15-40 cps) much like awake-aroused state.
Hope this helps!
Thank you, this was very helpful!