Therm-a-Rest MondoKing Mattress - XXL

Therm-A-Rest Reviews

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Therm-a-Rest MondoKing Mattress - XXL

For big comfort and support on a massive scale, the MondoKing™ mattress offers a full 4 inches (10 cm) of ultra responsive, body-contouring foam in a huge pad that maximizes space and comfort. The fabric shell provides next-to-skin softness while the rugged bottom resists punctures wherever you camp, offering long-lasting support for years to come. The MondoKing™ mattress compresses to a surprisingly reasonable travel size. Stuff sack included.

  • Big Comfort: Huge mattress offers maximum space and comfort. The XXL version is more than half as wide as a Queen size bed.
  • Thick: 4 inches (10 cm) of warm, compliant foam for comfort no matter where you camp.
  • Durable Comfort: Woven top provides next-to-skin comfort; rugged bottom resists punctures.


Packed Weight 5 lbs 2 oz 6 lbs 9 oz
Color Nautical Blue Nautical Blue
R-Value 11.4 11.4
Weight 4 lbs 11 oz / 2130 g 6 lbs / 2720 g
Width 25 in / 63 cm 31 in / 79 cm
Length 77 in / 196 cm 80 in / 203 cm
Thickness 4 in / 10 cm 4 in / 10 cm
Packed dimension 7 X 26 / 18 X 66 7 x 32 / 18 x 81
Volume 7700 cu. in 9600 cu. in
Top fabric type 75d Diamond Ripstop Polyester 75d Diamond Ripstop Polyester
Bottom fabric type 75d Polyester 75d Polyester
Core Solid PU Foam Solid PU Foam
Country of Origin Made in Seattle, USA Made in Seattle, USA
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