1-800-Mattress is a privately held mattress and accessories franchise with dealers and distributors in many locations throughout the United States. With 1-800-Mattress, its clients can shop by size or by brand. Their inventory includes twin, full, queen and king size mattresses under such brand names as Sealy, Simmons, Serta, Tempur-pedic, King Koil and Nation s Pride. The company also stocks headboards, footboards, bed linens, day bed linens, mattress pads, sheets and pillows and bed frames. Through its Internet site, customers can receive discount coupons and view discontinued items. Online instructions guide its customers through their decision-making processes. 1-800-Mattress has it headquarters in Long Island City, N.Y.