7.75in memory foam mattress, Inner cover made of 50% polyester and 50% fiber glass, Jacquard outer cover and knitted inner cover, 3lbs of memory foam with a 8-10 second recovery time, The unique construction of this mattress consists of 6 layersof comfort: 80% and 20% polyester fabric with an FR barrier of viscose and polyester fiber; 0.5in of memory foam, 40 grams of non-woven fabric,, another layer of 1.5in memory foam, 6in of foam and a PVC bottom, Includes a prorated 20 year warranty., Care instructions: Spot clean with mild detergent., Imported, Choose from the following sizes while supplies last: , Twin, Full, QueenBuy 7.75in Visco Memory Foam Mattress