Thermarest Mondoking 3D Blue

Thermarest Mondoking 3D Blue

Self-inflating 4-season camping mattress, 11 cm thick for maximum comfort. R-Value 7 insulation.

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The opinion of Aventure Nordique

The Mondoking 3D Blue self-inflating mattress from Irish brand Thermarest is ultra-comfortable thanks to its 11 cm of dense, high-quality foam. The StrataCore internal construction, developed by Thermarest for this 4-season mattress, offers an excellent warmth-to-weight ratio. A layer of thermal foam is nested alternately between the air and foam tubes. This technology also makes it easy to compress the mattress for storage in its carry bag.

With an R-value of 7, you can sleep serenely in all seasons, even in the coldest of winters. Comfort is luxury! The wide, soft-touch surface doesn't slip or make noise when you move. The Mondoking 3D Blue mattress adapts to your body for better support and a restful night's sleep, whatever the weather!

The TwinLock valve system makes it easy and quick to inflate and deflate. One valve is used for inflation, the other for deflation, and the mattress comes with a pump bag. Once connected, this pump bag makes it easy to inflate the mattress. All you have to do is blow out a little air and then roll it up with the trapped air. This mattress can be combined with another 3D mattress.

The Mondoking 3D Blue self-inflating mattress is an ultra-comfortable, well-insulated mattress for nights as restful as at home!

Points to remember

Thanks to its 11 cm thickness and 4-season insulation, the Mondoking 3D Blue self-inflating mattress from Irish brand Thermarest is ultra-comfortable. It adapts smoothly to your body and its cover is very soft. Particularly well suited to winter conditions, you'll be insulated from the cold wherever you sleep! Van, camping, bivouac...

Technical details

Manufacturer Therm-A-Rest
Product name Mondoking 3D Blue
Season 4 season
Type Self-inflating
Form Rectangular
R-Value 7
  • Top: 50 D polyester elastic outer shell
  • Underneath: 75 D polyester outer shell
  • Inner composition: urethane foam
Colour Blue
Length L : 196 cm - XXL : 203 cm
Width L : 64 cm - XXL : 76 cm
Thickness 11 cm
Folded L : 66 cm x 26 cm - XXL : 70 cm x 26 cm
Weight L: 1990 g - XXL: 2500 g
Accessories Storage bag, Inflation Stuff Sack
Additional information

To inflate the TwinLock™ valve:

  • Unroll your mattress and open the "IN" valve by turning it counterclockwise.
  • Use a pump bag or blower to inflate your cushion. The one-way "IN" valve will prevent air from escaping.
  • When the mattress is fully inflated, close the valve by turning the valve cap clockwise.

To deflate the TwinLock™ valve

  • Open the "OUT" valve by turning it counterclockwise.
  • The one-way "OUT" valve will prevent air from flowing back into the pad.
  • Roll the pad towards the end of the valve, pushing any remaining air out of the pad.
Warranty Lifetime
Country of Manufacture Ireland


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