Superking mattresses on BedStore. The name says it all. Super luxury mattresses available to kings and now you. The most spacious mattresses you’ll find that add instant luxury to any master bedroom. On BedStore we have coil and pocket sprung mattresses, memory or latex foam superking mattresses, all available in different mattress firmnesses and mattress finishes. Take your pick of the best selection of superking mattresses on the web.