Therm-a-Rest - MondoKing™ 3D
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Based on 1 year's data from Mar 2, 2026 How it works
Liked most:
12
1
"I've never been cold on it even in sub freezing"
"keeps us warm ... We only camp in winter, early spring and fall."
"It also has a great R value so you won't get that freezing effect you can get from some of those thick but hallow air mattresses ... Also the r value is really good on it."
9
2
"Definitely worth it ... I think I only made one repair."
"Well if you need quality, comfort and light easy portable one… term a rest is just the best in the market. ... We use those for 20 years down here wile fly fishing in bariloche, patagonia Argentina."
"Op zolder liggen 2 thermarest matten waar ik als kind nog op geslapen heb toen ik met m'n ouders kampeerde, 20-25 jaar geleden."
16
1
"It's super comfy. More comfortable than my bed at home. ... I sleep better on my mondoking XXL than I do on my bed at home. ... this air matress has made a huge difference for me."
"a great night sleep ... am side sleeper"
"Well if you need quality, comfort and light easy portable one… term a rest is just the best in the market. ... We use those for 20 years down here wile fly fishing in bariloche, patagonia Argentina."
2
0
"For me the thermarest warranty has been worth its weight in gold ... every interaction I’ve had with them has been amazing, no questions asked replacement or repair"
"Ive had both ThermaRest and Nemo send me free replacements when my pad developed a leak"
3
0
"Let them decompress and add a few breaths to your liking, and close the valves. ... You decide on the amount of give by how much extra you inflate it beyond what the foam can do itself."
"you can deflate it to your liking without the air mattress “sinking” to the middle feeling"
"Once it’s laid flat, I give it some air (breath or little air pump) to make it super firm."
Disliked most:
2
4
"stupidly heavy mondo king pad"
"XXL comes in at 5lbs, 8oz."
"But car camping only really with it"
0
1
"I never want to pay that much for again :)"
1
5
"Both times I’ve hiked the PCT my thermarests have popped in the desert . ... My first one had multiple holes and was a write-off."
"I havepunctured 2 thermarests on rocks pr thorns. ... I won’t be using them again."
"My first thermarest popped in TN due to me raw dogging it in shelters."
0
1
"pillow kept sliding off"
BMThiker 1.0Game changer for us was setting up two Thermarest Mondoking XLs side by side in our tent. Sharing an inflatable mattress is not as fun as you think. Every time someone moves in the slightest the whole mattress moves. On top of that we do have a Kelty double wide sleeping bag.
Two separate Thermarest Mondoking XLs side by side - different air pressures - no waterbed affect when one of us moves/rolls over. Kelty doublewide sleep system (bag).
CozyTurtle55 1.0We also have just two car camping pads side by side! Enough for snuggles without disturbing each other as much. We have Mondo King pads/mattresses. Not sure if they still make them but feel like they were less expensive than the Expeds seem. And option to still use it for a solo trip.
dangerousdave2244 1.0The Exped Megamat is insanely comfortable and keeps you REALLY well-insulated (R Value of 8.1, most cold weather pads are R-value of 5). Not to mention it will last decades before it needs to be replaced, and it's backed up by a lifetime warranty. All expensive sleeping pads are. Ive had both ThermaRest and Nemo send me free replacements when my pad developed a leak The Nemo Roamer is similar, as is the Thermarest Mondoking. But what makes me love the Exped Megamat is that the top layer feels like it stretches, sp the pad contours to your body like memory foam, just less thick https://www.outdoorgearlab.com/topics/camping-and-hiking/best-camping-mattress#an-exceptionally-comfortable-mat
EasternGarlic5801 1.0How much is it ? I have a mondoking xl that I never want to pay that much for again :)
Yeah it’s been great. But car camping only really with it
ExLibris_1 1.0When I’m solo at a state park it’s nice to raise the sleeping pad up. I use a coleman packaway with a thermarest mondoking 3D for a great night sleep. When the SO and baby comes along we use a queen aerobed. Edit: am side sleeper
Green-Confection9031 1.0We use separate air mattresses so we can adjust how we want. Thermarest Mondoking. Expeds are nice too. I think both make double mattresses too if you want to go that route.
Growitorganically 1.0We sleep on two Mondo Thermarest pads strapped together. They’re 5” thick and wider than conventional Thermarests. Very stable and comfortable to sleep on.
Hands 1.0Buying a nice 4 inch sleeping pad (I have a thermarest mondoking) five years ago was a game changer for me when it comes to car camping. I love that damn thing so much, I have no trouble sleeping on a traditional thin thermarest but the 4 inch one is straight up luxurious. It's not even in the same universe as a crappy walmart air mattress
hey_poolboy 1.0XL rooftop tent. She sleeps on a Therma-Rest Mondo King mattress. I sleep on the built in pad in the RTT.
I'm partial to the Therma-Rest Mondo King.
hollis3 1.0I have the MondoKing 3D. Love it, but it isn't the smallest.
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