Quilted cover 5" - 13.5 gauge coil springs Reversible Made with CertiPUR-US® certified foam. Foam in this mattress is made without PBDEs, TDCPP or TCEP ("Tris") flame retardants, ozone depleters, mercury, lead and heavy metals Meets Federal Flammability Standard CFR1633 Get back to basics and get a good night's sleep with the Signature Sleep Essential 6 inch reversible mattress made with CertiPUR-US certified foam, available in white or black to suit your style. We've nestled our innerspring coils between two layers of foam, creating a sturdy core buffered by soft, flexible padding for extra cushioning and comfort. This Signature Sleep mattress meets federal flammability standard 16 CFR 1633 and is shipped compressed, rolled and vacuum sealed for your convenience. The result is a restful sleep that's everything you could ask for! Expanded assortment available online. This item not carried in store.