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Therm-a-Rest MondoKing 3D Sleeping Pad

$209.95 - $229.95

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  • Poseidon Blue, Large
  • Poseidon Blue, XXL

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MondoKing 3D Sleeping Pad

The MondoKing 3D Sleeping Pad is Therm-a-Rest's biggest pad for the utmost comfort camping in any season. Vertical sidewalls enhance the MondoKing's sleeping surface by 20 percent, and the foam core ensures winter-worthy warmth while the dual valves self-inflate and deflate quickly.

  • Therm-a-Rest's largest sleeping pad provides the comfort of home
  • High R-value delivers warmth during the coldest nights
  • Dual valves ensure speedy inflation at the campsite
  • Compressible foam core packs down efficiently
  • New and improved stuff sack includes easy-carry handles
  • Item #TAEA06P

[top] 50D polyester stretch knit, [bottom] 75D polyester
air pad, foam pad
[large] 25 x 77 x 4in, [xx-large] 30 x 80 x 4in
pump stuff sack
Stuff Sack
Packed Size
[large] 26 x 10.3in, [xx-large] 31 x 10in
Claimed Weight
[large] 4lb 6oz, [xx-large] 5lb 8oz
Recommended Use
weekend camping, winter camping
Manufacturer Warranty

Tech Specs

What do you think about this product?


>Rating: 3

Mixed Feelings

I've used it once or twice and have initial impressions
Runs large

I love the comfort of this pad but it's advertised size is wrong. I purchased two of these (size Large) to use side by side in my roof top tent, which is 50 inches wide. Thermarest markets these as 25 inches wide. They even screen print the dimensions on the storage bag (see photo). The pad is actually 26.25 inches wide which under most situations would not make any difference but in my situation makes them unusable. So disappointing as they are very comfortable.


How to use the TwinLock™ Valve

Utilizing two speedy one-way valves all in an intuitive design, the TwinLock Valve helps to provide a better night outside on your camping adventures. Luxury sleeping pads shouldn’t be complicated or difficult to use. That’s why we designed the TwinLock Valve to give campers the best experience inflating and deflating their sleeping pads. This rugged valve features one-way inflation, three times faster inflate, better air flow, easy deflation and are as easy to use as a water bottle cap.

>Rating: 5

Mondo King xxl

I've used it several times
True to size
Size Bought
5` 10"
210 lbs

Simply put. Awesome. So comfortable and tons of room top to bottom and side to side. One of the best purchases of the year. I have used it in my house a few times to test it out. Like playing with your Christmas gifts as a kid...just got to play with it. I can’t wait to put it in my tent and sleep like a baby. You won’t be remorseful if you buy this...promise.