Dot Point 2 - Sleep As In ASC

Question 0

List 9 differences between REM and NREM sleep

Answer 0

REM NREM
more likely to dream less likely to dream

20% time spent 80% time spent

Eyes move rapidly Slow rolling eye movement

Only 1 stage. Can be divided into 4 stages

Beta-like waves Alpha- delta waves

REM sleep increasing NREM sleep decreasing

Internal functioning more active internal functioning is less active

REM replenishes our mind. NREM replenishes our body

In paralysis/ cataplexy / muscle atonia Muscles are relaxed

Question 1

Briefly discuss the typical pattern of sleep

Answer 1

1. REM sleep is increasing throughout the night
2. NREM sleep is decreasing throughout the night
3. A cycle of sleep is about 90 minutes
4. We experience 4-5 cycles per night
5. A typical cycle would look like
   Stage 1, 2, 3, 4, 3, 2, REM
6. REM is replacing stage 1 NREM in the first cycle
7. Stage 3 and 4 NREM do not occur later in the night