Since 1898 King Koil mattresses offer a remarkable level of value without sacrificing quality or craftsmanship. With 100-plus years of engineering innovation and manufacturing expertise, there has been one true constant' providing people the world over with a more restful sleep. The collection utilizes some of the finest materials available, including premium innerspring construction for enhanced support, a firm perimeter edge and specially designed foams for superior comfort.  King Koil mattresses provide the sleep experience you want at a price that won.t keep you up at night.