The Sealy Signature Century Collection Stockwell features targeted support for your back and core with a precisely engineered coil system and Sealy gel foam to promote proper alignment. The plush knit cover closest to the body on the top allows extra comfort using a super-soft stretch and breathable quality quilted fabric. Maximizing support for your whole body this mattress features the Sealy Stability Plus encased coil system. These precisely-engineered individually encased coils reduce motion transfer so you feel less movement from your partner throughout the night. The Sealy Core Support System using Sealy Comfort gel foam provides support under the heaviest part of your body where you need it most in the center third of the mattress. The Dura Flex Edge Pro System feature delivers a reinforced coil border that surrounds the edge of the mattress providing a more usable sleeping surface. Also featured are 4 vertical handles for easy transfer or rotation of the mattress. This group includes Twin XL mattress and foundation.