Thermarest MondoKing 3D Self Inflating Mattress - Large

R-Value: 2.0 / Dimensions: 63 x 196 x 10cm / Packed Size: 18 x 66cm
Weighs 2464g (excluding bag)
Code: AW16686
  • Now £139.99
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28 Day Returns Policy Provided the item is returned unused and in its original condition

The MondoKing 3D is a Thermarest first, 10cm 3D construction delivers maximum comfort and versatility. Vertical sidewalls provides 20% more usable sleep space. 

Thermarest says:

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. A new and improved stuff sack with easy-carry handle is also included.

Thermal Foams

Thermal Foam is our proprietary, solid-core foam. While it may look like just foam, we have spent decades working closely with our supplier, evolving this most basic element of our self-inflating pads. The resulting foam is made in the USA, and optimized for the best balance of light weight, lasting durability, and uniformity of support.

Thermarest's MondoKing 3D Self Inflating Mat really does prove that bigger is better. Yes it has a large pack size but what do you expect from Thermarest's biggest mattress. It's obviously not the type of mat you would take in your pack backpacking but it's perfect for basecamp or car campers who want to sleep as well as they would have at home.

The foam core means that it is a self inflating mat so there's no need for pumps and batteries, just unroll it, open both the valves (there are 2 to increase the inflation speed) and leave it to do its thing.

- Reviewed by BasecampGear

Help and advice:  
  • Comfort: 4 in (10 cm) of stabilized loft provides the comfort of home anywhere.
  • 20% More Sleep Surface: Vertical sidewalls maximize useable sleep surface.
  • Incredibly Warm: Foam core delivers all-season warmth to assure a great night's rest anytime.
  • 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 another 3D mattress.
  • Download Self Inflating Mattress Instructions & Warranty [PDF]
  • Weight: 2464g
  • Dimensions: 63 x 196 cm
  • Thickness: 10 cm
  • Packed size: 18 x 66 cm
  • R-Valve: 11.4 (US) 2.0 (SI)
  • Top fabric: 75d Reverse Diamond
  • Bottom fabric: 75d Polyester
  • Foam type: Urethane Foam
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