3 month old babies need an average of 11 to 12 hours of sleep at night and 3 to 4 hours of sleep during the day. Therefore, 3-month-old babies sleep a total of 14 to 16 hours of sleep a day, on average. Most babies this age take 4 naps a day. With over 10 years of experience, this article will provide you with sample 3-month-old baby sleep schedules, including milk feedings for breastfeeding and formula-feeding babies, solids, naps, and nighttime sleep. As a sleep consultant for over 10 years, I