It is possible and desirable to take strain off your back by making simple changes in sleeping posture. The healthiest sleeping position is on your side. If that’s how you sleep, draw your legs up slightly toward your chest and put a pillow between your legs. Some people even use a full-length body pillow to help maintain balance. Try not to put weight on your arms. This causes circulatory problems and a related pins-and-needles sensation. Instead, try crossing them in a braced position.

If you sleep on your back, it is best to place a pillow under your knees to help maintain the normal lower back curvature. You might try placing a small rolled towel under the small of the back for more support. Be aware that sleeping on your stomach is generally bad for your back. In this position, the cervical spine undergoes considerable strain, which can cause nerve compression, muscular imbalance and muscle pain. If you can't sleep any other way, reduce the strain on your back by placing a pillow under your pelvis and lower abdomen. Also place a pillow under your head if it doesn't cause back strain. Otherwise, try sleeping without a head pillow.

Download The American Chiropractic Association's Proper Sleep Ergonomics to learn more.