Chime 8 Inch Memory Foam King Mattress and Adjustable BaseKing Mattress and Adjustable Base When it comes to your comfort, discover this 8 inch king mattress with adjustable base. Its memory foam contours to your body, delivering amazing support, pressure relief and comfort. The memory foam layer is supported by a thick layer of firm support foam. This helps reduce motion transfer so you and your partner can enjoy an undisturbed sleep. This mattress arrives in a box for easy setup.