Sleep and Dreams 

^^Non Rem- Stage 1^^

• Body making the transition from being awake to falling asleep
• heart. breathing and eye movement slows
• easily awakened from stage 1
• experiencing hypnic jerks during this stage is common.
• lasts 5 to ten mins

^^Non Rem- Stage 2^^

• lasts 10-25 mins
• eye movement stops, muscles relax, heart and brainwaves slow
• a person spends more time in stage two throughout the night than any other stage

^^Non Rem- Stage 3/4^^

• lasts 20-40 minutes
• a lot deeper sleep
• if you wake up during stage 3/4 sleep, you will feel a lot more tired and groggy
• blood pressure falls and body temp drops
• heart rate at low level

^^REM (Rapid Eye Movement^^

• brainwaves during REM are similar to somebody who’s awake
• happens about 90 mins after falling asleep
• lasts 10 mins
• when most dreaming occurs
• brain is most active
• breathing becomes fast and shallow