6-month-old babies sleep an average of 13-14 hours in a 24-hour period with 11-12 hours at night and 2-3 hours during the day. A good schedule can help your baby sleep better and eat better. This post will provide sample 6 month old feeding and sleep schedules, including milk feedings for breastfeeding and formula-feeding babies, solids, naps, and nighttime sleep. How Much Sleep Does a 6-Month-Old Baby Need? A 6 month old needs an average of 14 hours of sleep in a 24-hour period. Here is