My baby is 9 weeks old and he tends to sleep or keeps his head on the right side, how do i make him to stay on left side as well?

Two steps: You can often alter babies habit by setting them down to sleep is opposite positions on alternate nights. Head to the top then the next night to the bottom of the crib.Babies tend to turn away from the wall to see you come in.You can also gently turn the head to both sides while playing to make sure the neck muscles move freely.If tight moving to one side, talk with your doc about other options.