Once your baby is on 2 daily naps, some experts recommend trying the 2-3-4 approach for a nap schedule. Your baby will be awake for 2 hours before the first nap, 3 hours before the second and 4 hours before bedtime. This works by increasing the wake windows between nap time throughout the day as many little ones need the longest awake period before bedtime to build enough sleep pressure for overnight.