Why settle for an uncomfortable night's sleep? With this hybrid king mattress, you have endless possibilities for restful sleep. Feel the support of a truly traditional coil mattress which contours to your body for a comforting feel. High-density foam provides the firmness you love. Gel memory foam provides restorative support for your lower back. Hypoallergenic material is ideal for sufferers of allergies for ultimate undisturbed sleep–not to mention peace of mind. Plus, this mattress arrives in a box for quick and easy setup. Simply remove the plastic wrap and unroll. You’ll be amazed at how it fully expands within minutes. Foundation/box spring available, sold separately.