Normal Sleep
Sleeping Under Stress
Sleep Interventions
100

N1 

N2 

N3 

REM

What are the four stages of sleep?

100

Cyclical 

What is the relationship between stress and sleep?
100
​Darker and cooler room 


No electronics before bed


Bed only for sleeping 


What is sleep hygiene?

200

Theta waves 

What waves show up during N1
300

Delta waves

What waves show up during REM?

400

90 minutes - 110 minutes

What is the duration one a sleep cycle