My dad has Parkinson’s and is under hospice care. He cannot tolerate the mattress topper they have provided that is plastic and has inflatable baffles that rise and fall to aid in compression sore care. It seems the nerves in his skin are just so sensitive and the baffles literally hurt him. We’ve taken this baffled air overlay off but I still feel like the mattress itself, which has the blue vinyl cover over foam, could be a little softer for him but I don’t know what overlay to get that would be more like gel foam but still be washable and sanitary. Any suggestions?