Are you always on the lookout for something bigger and better? Simply put, the MondoKing™ 3D is the biggest Therm-a-Rest® mattress ever. Vertical sidewalls create 20% more usable sleep surface so you have room to sleep like starfish. Dual valves allow compressible foam core to expand and inflate quickly when unpacked. Stuff sack included.
Stable Comfort: 4 in. of stabilized loft provides the comfort of home anywhere.