Thermarest MondoKing 3D

Updated For 2019: Sleep like camp royalty with Thermarest's thickest luxury mattress.

Are you always on the lookout for something bigger and better? Your ship has arrived with the MondoKing 3D. 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.

Features

• Stable Comfort: 4 inches (10 cm) of stabilized loft provides the comfort of home anywhere.
• Updated Fabric: Supple stretch-knit fabric provides deluxe breathability and plush surface.
• Giant Sleep Surface: Vertical sidewalls maximize useable sleep surface.

• Self-Inflating: Dual valves allow compressible foam core to expand/inflate when unpacked; just a few breaths top it off to your ideal firmness.
• Mateable: Mates perfectly with other 3D mattresses.