The Stages of Sleep

There are 5 stages of sleep.

1: Non -REM(rapid eye movement)

• Between sleep and wake
• Brain waves relax

2: Non-REM

• Light sleep
• Person can be easily woken
• Deeper stage of relaxation

3&4: Non-REM

• Person is generally unresponsive
• Heartbeat and respiration rate decrease
• Muscles relax

5:REM

• Eyes twitch
• Heart rate and breathing become more irregular

Postawski, Kacper. "Powerful Sleep." Powerful Sleep. N.p., n.d. Web. 9 Jun 2011. .