Rest & Sleep Flashcards
Sleep pattern of newborn
Average amount of sleep is 16 hours daily
Sleep pattern of infant
Average of 12-15 hours daily
Sleep pattern of preschoolers
Average amount 11-13 hours
Sleep pattern of school-aged children
Average 10-12 hours
Sleep pattern of teenagers
Average 8-10 hours
Sleep pattern of young adults
Average 7-9 hours
Sleep pattern of older adults
Average 7-8 hours
Stages of NREM
Stage 1
Stage 2
Stage 3
Stage 4
Stage 1 NREM
5% of cycle
Transitioning between awake and sleep, relaxed but still somewhat aware, involuntary muscle jerking may occur and wake, normally only minutes, can be aroused easily
Stage 2 NREM
50-55%
Falls asleep, can be aroused with relative ease
Stage 3 NREM
10%
Depth of sleep increases and arousal more difficult
Stage 4 NREM
10%
Greatest depth of sleep, delta sleep, arousal most difficult
Slow brain waves on EEG, pulse RR BP decreased, muscles relax, metabolism slows, low body temp.
Rapid Eye Movement (REM)
20-25%
Enters from stage 2 of NREM; arousal from sleep difficult
Small muscle twitching
BP, pulse, RR, metabolism rate, body temp increase
Irregular RR
Rapid/irregular pulse
Gastric secretions increase
Skeletal muscle tone & deep tendon reflexes decrease
Sleep cycle
We usually go through 4-5 cycles of the 4 stages each night
Sleep cycle stages
Awake > NREM 1 > NREM 2 > NREM 3 > NREM 4 > NREM 3 > NREM 2 > REM > NREM 2 > NREM 3
Each cycle is ~90-100 mins
More deep sleep in NREM 3, 4 in first half of night
