The answer is yes, there are pads that can help prevent bedsores. This includes foam overlays that fit over the mattress, and pads filled with gel, air, or water. There are also a number of mattresses designed to prevent and help treat bedsores; with names like "alternating pressure" or "low air-loss" mattress. This is one area where it really helps to match your choice of pad or mattress with the person you're caring for. All situations are unique. And please don't go this alone. Talk to a doctor or nurse (with experience treating bedsores) about choosing a pad or mattress for your situation. Research shows some systems work better than others, and these aren't necessarily the highest-priced ones. (Your budget is also a concern.) If you do an internet search on mattress pads and bedsores you'll find lots of information from medical/health sites and stores. Use this for background, but don't make any decisions (or buy anything) until you've conferred with a medical expert. Best of luck.