Omne 13" Plush Hybrid King Mattress with Contouring Memory pairs a responsive coil spring unit with layers of polyurethane memory foam to deliver plush pressure relief while maintaining supportive alignment. The 13-inch profile features a coil spring unit covered by 98% polyurethane foam and 2% polypropylene netting, and the cover is 100% polyester for a smooth sleep surface. Offered in Eastern King size, it gives couples ample room and balances conforming comfort with reliable support for nightly rest.