Sleep needs range from 13.1 to 16 hours of combined daytime and nighttime sleep.
Average night sleep: 9.5-10.5 hours (usually with 1-3 feeds)
Average day sleep: 4-5 hours over 3-5 naps
Average wakeful window: 1.5-2 hours after a restorative sleep
Sleep cycles change, making it easier to wake up during sleep stage transitions.
Melatonin secretion rises and non-REM sleep increases so babies start to sleep deeper.
More Tips from The Sleep Coaches:
Partial arousals are more distinct and babies can wake as they shift sleep phases.
Naps start to become more organized, especially the morning nap.
Most babies will wake 1-3 times each night for a feeding.
Some babies may be able sleep one longer stretch, often four or more hours at night.