My son is 17 and wakes up every couple hours to be turned. He weighs 82.5 lbs right now which means he doesn't have any fat to help cushion the but bones. That is when he is on his back. When he is on his side he also gets sore and needs to be rolled. He has a craftsmatic adjustable bed which used to be fine then we added a 4 inch memory foam when he started to get more uncomfortable. Now we are at this point. Don't know what to do. If you have any ideas please fill me in. Hoping for a cheaper alternative than the bed that turns. Whatever we need to do to give him the good nights sleep he deserves is all we want.