King Koil Spine Support is the premier value mattress collection, featuring fine craftsmanship and materials for a better sleep. Over 110 years of design heritage have created this collection of quality mattresses at an affordable price. This mattress features: Firm support No flip Safeguard fiber - fireproof safety ???????????? Foam pad 513 Foam encased pocketed coil Foam encased - edge to edge expanded sleeping surface; extremely durable seating edge King Koil Roswell Queen Mattress Set 15 Year Warranty