4" Folding Mattress Gel Memory Foam Cooling Layer by Lucid Full 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 - Full Size 53" x 75" plus 5 year warranty