LUCID 4 Inch Folding Mattress and Sofa with Removable Indoor / Outdoor Fabric Cover - King Size Doubles as a sofa style floor chair to provide comfortable seating and a convenient guest mattress in one Perfect for sleepover guests, camping, cabins, dorm rooms and children's playroom Use as a mattress topper, portable cushion and guest bed - great alternative to futons, bunk beds and trundle beds Durable indooroutdoor cover is removable and machine washable CertiPUR-US certified with no harmful odors, resistant to dust mites and safe for children - King Size 76" x 80" plus 5 year warranty