It's not always the baby who's stealing your zzz's. The position you snooze in can throw off proper body alignment, which affects quality of sleep. Simple changes for better shut-eye from Scott Donkin, a chiropractor in Lincoln, NE:

You fall asleep on your... belly

Potential problem: To breathe easily, you have to twist your head to the right or left, which can strain your neck.

Easy adjustment: Start off the night lying on your side with a pillow between your knees. Or try a body pillow to lean into as you sleep. Both will keep your spine and neck more naturally aligned.

You fall asleep on your... back

Potential problem: If your head is elevated too high (and your chin points down to your chest), your spine may curve forward, creating tension in the shoulders and upper back.

Easy adjustment: Sleep with a flatter pillow  -- and put another one under your knees to prevent your lower back from arching, which can also cause pain.

You fall asleep on your... side

Potential problem: Your middle can dip toward the mattress and put pressure on your lower back.

Easy adjustment: Put a rolled towel between your waist and the bed, positioning it under the fitted sheet.