hypnograms

Question 1

healthy adult

Answer 1

-alternating cycles of NREM and REM sleep, relative time spent in each one.

-as sleep ep progresses stager 3 sleep may not be experienced

-REM periods get longer and closer together

-stage 1 may be skipped just before REM period

-breif awakenings during the episode

Question 2

older adults

Answer 2

-significant reduction in stage 3 sleep as the sleep episode progresses + the frequent awakenings throughout the episode