Question: how long should a 4 month sleep?
Answer: How much should a 4-month-old sleep? At 4-months-old, your baby needs about 12 to 15 hours of sleep for every 24-hour period. Typically, 4 to 6-month-old babies will get 6-8 hours of their sleep during the night, with 1 to 2 awakenings in between to feed.