Sleep Across the Lifespan

neonatal period

1-15 days

characteristics of sleep in the neonatal period

-sleep duration is the highest it will ever be. Newborn babies sleep for approximately 16 hours

-approx. 50% in REM and 50% in NREM

infancy

3-24 months

characteristics of sleep in infancy

-sleep duration decreases to approx. 13.5 hours

-proportion changes to approx. 35% REM and 65% NREM

childhood

2-14 years

characteristics of sleep in childhood

-decreases to an average of ~11hrs

-proportion changes to ~80% NREM, 20% REM

-sleep duration starts at ~12hrs and decreases to ~10hrs over this stage

-REM starts at ~25% and decreases to ~18.5%

Adolescence

14-18 years

characteristics of sleep in adolescence

-decreases to an average ~9hrs

-proportion ~20% REM and 80% NREM

-biological delayed sleep onset by 1-2 hours, meaning more likely to be sleepier later and wake up later

Young adulthood

18-30 years

characteristics of sleep in young adulthood

-decreases to an average ~7.75 hrs

-proportion ~20% REM, 80% REM

Old age

75+ years

characteristics of sleep in old age

-decreases to an average of ~6hrs

-proportion ~20% REM, 80% NREM

-advanced sleep phase syndrome, biological shift forward in sleep cycle (sleepier earlier and wake up earlier)

typical hypnograms

check slides/book