Most of us have spent years yearning for better posture. And if youre stuck with a shoulder hunch, you may feel like your shot at having good posture has simply slipped away.

Not so fast.

The position you sleep in at night can actually improve your posture during the day, says Dr. Keren Day , an expert chiropractor who came aboard HuffPosts special #SleepRevolution flight with JetBlue this week.

The key, Day says, is staying as neutral as possible in your sleep position. And for most people, that means sleeping on your back.