What is a 4 month old baby supposed to be doing?
Photo Credit: Courtesy of 3DStockPhoto (month old image)
How Much Sleep Does a 4-Month-Old Baby Need? The average 4-month-old baby needs between 12 and 16 hours of sleep every day. This may mean two daytime naps (morning and afternoon for three to four hours each) and a longer stretch of sleep at night.