Development Babies start to lift their heads briefly. They reach for things with their hands. They enjoy smiling faces and sometimes smile in return. Cooing sounds may be made in response to people speaking gentle, soothing words. Many babies wake up every 3 to 4 hours, while others sleep through the night.
Every baby is different.
Feeding your baby a lot just before bedtime doesn't have much to do with how long your baby will sleep. Place your baby in the crib when he's drowsy but still awake. Ask your doctor or nurse for ideas about ways to keep your baby alert and awake during the day and sound asleep at night. Safety Tips Never leave your child alone, except in a crib. Place your baby in bed on his back.