Positional molding is most common in babies who spend most of their time on their backs in cribs, car seats or infant seats. Although this is the safest position for sleep, there’s plenty you can to do to keep your baby’s head from becoming flat or lopsided.

Place your baby on his or her back to sleep, but alternate the direction your baby’s head faces. Or place your baby’s head near the foot of the crib one day, the head of the crib the next. Use varying positions in the car seat and other infant seats, too. You might also consider using a neck-positioning device — such as a specially designed wedge or U-shaped pad — while your baby sleeps. Never rest your baby’s head on a pillow or other type of soft bedding.

Holding your baby when he or she is awake will help relieve pressure on your baby’s head from swings, carriers and infant seats.

With close supervision, place your baby on his or her tummy to play. Make sure the surface is firm. If you must leave the room, bring your baby with you.

Position your baby so that he or she will have to turn away from the flattened side of the head to look at you or to track movement or sound in the room. Move the crib occasionally to give your baby a new vantage point.

If you spend too much time worrying about your baby’s head shape, you may miss some of the fun of being a new parent. In a few short months, better head and neck control will help your baby keep pressure more evenly distributed on the skull. Until then, change your baby’s position often — and check with your baby’s doctor if you’re concerned about your baby’s head shape.