With a layer of high density visco elastic polymer gel that was originally developed for nasa missions the memorypedic memory coil ikea size mattress moulds to fit your body shape as you sleepthe mattress will help you find the best sleeping position as soon as you get into bed and has an extra firm edge to prevent you rolling off the bed during the night the mattress also has a traditional coil spring system for added comfort and supportin addition to the unique support system offered by th