For you comfort support quality and price are all top of mind. Rest easy. This Euro top king mattress from Sierra Sleep by Ashley blends high performance with low-maintenance features for a masterfully crafted mattress made to stand the test of time and offer great overall support. At the core of this mattress a 638 15-gauge pocketed coil system thats topped by layer upon layer of feel-good comfort including high-density foam firm support foam firm quilt foam and gel memory lumbar support foam for a cooler nights sleep. And for added protection a luxury nano stain-resistantwaterproof cover and bed bugdust miteallergen barrier for peace of mind.