The Buckingham Box Top Plush Hybrid Mattress, by Restonic, combines multiple layers of comfort foam with zoned, Individually Wrapped Coils, providing both a plush and supportive, sleep experience. A layer of Memory Foam, infused with CoolGel, provides extra support and a cooling effect. Featuring the Marvelous Middle®, a concentration of Individually Wrapped Coils in the center third of the mattress providing excellent support and reduced motion transfer. Additional lumbar support is created with a Latex layer of foam. Sleep cooler with New Zealand Wool and Silk beneath the top cover. Enjoy a luxurious sleep tonight.