Two-sided, foam-encased innerspring pillow-top mattress is adjustable-base compatible. Features layers of natural cotton, high density foam, super-soft convoluted foam, and plush dacron on both sides. Mattress can be flipped, providing long lasting comfort. Also includes a wire-tied, grid-top working box spring, which adds extra comfort, support, and durability to the mattress. Box spring height: 8". Materials: Polyurethane foam, blended cotton felt, polyester fiber, cellulose fiber. Comfort ...