This article outlines the average 5-month-old baby schedule, including milk feedings for breastfeeding and formula-feeding babies, solids, naps, and nighttime sleep. Skip to the schedule 5 Month Old Baby's Sleep and Development At this age, if you are not lucky enough to have a baby who sleeps through the night, many 5-month-olds are still waking 1-3 times to eat at night. Anything more and likely you have a sleep association problem. Your 5-month-old should be taking 3-4 naps per day