Good, restful sleep is important for health. It helps in regeneration, stress relief, growth, and hormone balance among many other things. The right position can enhance how well you sleep and prevent snoring and restlessness. According to doctors, sleeping on your right side might constrict blood vessels and cause you to shift position, waking during the night. Sleeping on your stomach can lead to snoring and back pain. Sleeping on your left side seems to be best for a restful healthy sleep, helping with acid reflux and snoring.