One of the best sleeping positions is directly on the back, which makes it easy to keep the head, neck and spine in a neutral position, according to Health.com. Another good sleeping position is on the side, which keeps the spine elongated.
Sleeping on the back doesn't force any extra curvatures, notes Health.com. It can help fight acid reflux disease because the head is elevated on a pillow, keeping the esophagus above the stomach. Sleeping on the back is not a good position for chronic snorers. Sleeping on the side is also good for acid reflux and keeping the spine elongated.