The MedCline Shoulder Relief System eliminates chronic shoulder pain at night for a better night’s sleep. This Sleep System allows you to once again sleep comfortably on your left or right side by dropping your downside arm into a patented arm pocket to remove shoulder pressure while draping your other arm over the Therapeutic Body Pillow creating a neutral arm position. I bought this one for myself. Attempted to use it once. I have many sleep issues and was unable to use. Pristine condition. Non-smoking home.