Designed and tested with input from the National Sleep Foundation, a not-for-profit organization in Washington DC, this Serta Perfect Sleeper® offers a terrific value plus comfort and support. It also provides: Pillowtop comfort Advanced Comfort Quilt® Pillo-fill® Soft Convoluted foam ½" Comfort Foam Serta® Insulator ½" Memory Foam 744 - 3Zone foam incased individually wrapped coil FireBlocker® - features a blend of fibers that slows the spread of an open flame into a mattress Serta Highland Springs Queen Mattress Set10 year non-prorated warranty for the set.