The Isabella Jumbo Pillow Top is engineered to deliver deep conforming comfort, superior support and value. This mattress features a high carbon content "tempered" pocketed spring system designed to eliminate motion transfer, extra support and conformability to the bodies individual contours. The sophisticated heavyweight circular knit cover provides reduced motion while increase conformability to the sleeper. The upholstery grade foams from the ultra plush jumbo pillow top are layered with an ascending support strategy beginning with a new quiltable cool gel foam. This group includes Twin XL mattress and foundation.