Sweet dreams are well within reach with this king size hybrid mattress. A combination of several different foams and steel springs, it seamlessly blends the best technologies to ensure you sleep soundly. A base layer of 6 in. steel springs provides a sturdy foundation and an even feel. The springs are individually wrapped and covered with a felt pad to ensure they stay in place. Above the springs, a 1.375 in. layer of high-resiliency support foam creates a responsive, conforming support layer. A foam-encased border edge provides a 10% greater sleep surface. The top, quilted layer contains an additional 0.5 in. layer of high-resiliency support foam, 1 in. of Pure Gel Infused Memory Foam, and 1.5 in. of fiber all wrapped in a knitted cover. These materials provide a comfortable surface and allow for airflow, so you sleep in ultimate comfort. Includes a knitted cover. Also available in Twin, Twin Extra Long, Full, Queen, and California King sizes. Pair it with one of our coordinating foundations for best results.