Never put up with another flat mattress when you sleep outdoors. The Therm-a-Rest MondoKing gives you a comfortable and still compact solution, blending four inches of stabilized loft with a foam core and adding 20 percent more surface area. Get the same plush feel you have at home anywhere you go. . . . Made with 4 in. of stabilized foam for extra comfort. . A urethane foam core ensures year-round warmth, so you always get a good night???s rest. . Surrounded by 75D Reverse Diamond on top and 75D polyester on the bottom. . Vertical sidewalls increase sleep surface by 20 percent. . A self-inflating design features two valves, which inflate and expand the compressible foam core when unpacked. . Can be combined with other 3D mattresses. . R-Value: 11.4. . Weighs: 6 lbs., 12 oz.. . Measures 30 in. W x 80 in. L x 4 in. thick. . Packs down to 7 in. x 31 in.. . Volume: 9600 cu. in.. . Made in USA. . . . . . ??. . . . WARNING Can expose you to hexavalent chromium, which is known to the State of California to cause cancer, birth defects, and other reproductive harm. P65Warnings.ca.gov 40818092118 27832700017 9211