This medium memory foam mattress is designed to give you the universal comfort and support you need for a better night's sleep. Their unique combination of three distinct comfort layers is specially engineered to create an extra-plush feel. A luxuriously soft comfort knit cover allows you to feel the true support and comfort benefits of this premium mattress. The mattress-in-a-box collection was designed to provide outstanding comfort and support, as well as convenience (delivered directly to your door via UPS).