The Developing Brain Sleep is important for the developing brain and body. By 3 years most children will have slept for more time than all the wakeful activities combined. Many parents worry their baby isn’t getting enough sleep. However, you need to know there is a large variation from baby to baby and toddler to toddler. Just like there is with developmental milestones. Approximately 25% of children will experience a sleep problem of some kind. Physiology of Sleep The Circadian…