But curling the body too tightly throughout the night may contribute to stiffness, particularly around the neck, back, and hips.

Keep your body slightly relaxed rather than tightly curled.

Your knees can remain bent, but avoid pulling them excessively toward your chest.

A pillow between the knees can also help maintain better alignment.

5. Sleeping With Your Neck Bent Too Far

Sometimes the problem isn’t simply which position you choose.

It’s how your body is positioned within it.

A pillow that is too high can push your head forward. A pillow that is too low can allow your head to drop backward or sideways.

Over several hours, poor alignment may contribute to:

Your head and neck should remain in a relatively neutral position rather than being sharply bent upward, downward, or sideways.

6. Sleeping in a Reclined or Sitting Position

Some people fall asleep on sofas, armchairs, or recliners.