LUCID 4 Inch Down Alternative Gel Memory Foam Mattress Three Toppers in One, King

2-inch down-alternative layer and a plush 2-inch layer of gel memory foam combine for premium comfort The down-alternative portion of this topper is 100 percent cotton, machine washable, and dryer safe Ventilated, gel-infused and hypoallergenic memory foam regulates body temperature and contours to support your body; Please allow topper to decompress for 48-72 hours in a ventilated room Fitted sheet-style design secures the memory foam layer in place ensuring a smooth and comfortable fit; designed to fit on mattress depths up to 15" Can be used as a fiberbed, gel memory foam topper, or down-alternative and gel memory foam topper