Sleep Master 14-Inch Euro Top Spring Mattress, King Quilted poly-jacquard cover features fiber padding and 1.5 inch of comfort foam for conforming support Core composition of 1 inch Memory Foam, 2.5 inch High Density Support Foam, and 8.5 inch Foam Encased Coil Springs assures no motion transfer from a sleeping partner, while maintaining customized spinal alignment Foam is CertiPUR-US Certified for durability, performance, and content All Sleep Master mattresses meet the requirements of 16 CFR Part 1633-Federal flammability standards Our patented compression technology allows our mattresses to be compressed, rolled and shipped in a box via FedEx