Forget peas, with the Therm-a-Rest MondoKing 3D Sleeping Pad inflated beneath your toasty sleeping bag, you won't even notice if you've set up camp on a field of frozen rocks. The biggest pad yet in Therm-a-Rest's collection, it's designed 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.
Features: 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
First time I used this was along the IceFields Parkway in Canada in January. In super cold temps, this doesn't self inflate. However I wasn't cold once it was fully inflated (blew it up). Low temps in January were low single digits, warm for this time of year for Canada.
Fast forward to last month here in the SouthWest. Was on a week long trip, and it self inflates as it should! I believe anything lower than maybe 40 degrees it will have issues with the foam expanding to self inflate. Not once did I wake up to a deflated pad, in either Canada or here in Utah; much like many backpacking pads at low temps, which is normal.
The secret to get the pad back in the stuff sack is to roll it up with authority, then do it again. Amazing how small it is brand new, and then trying to get it that size again. Do it twice, and it is MUCH easier.
I have the non 3-d version. I am sure the latest iteration is just as good. If you want a good nights sleep in your tent and need to adjust the amount of "give" then this is the one to get. When not used camping it is used for stop-overs at home who compliment how comfortable it is. I like it so much I bought a 2nd one.
Took this on a 7 day deer hunt at 6200 feet, nights in the mid 20's days in the low 60's. I have to say this was a very comfortable mattress!! The only problems I had were all self inflicted as I did not let it inflate before I took it out so it took a long time to inflate on initial setup. Since I did not pre-setup the mattress I had a hard trying to deflate the mattress at the end of the trip. I got the mattress home looked at the video and VOILA it worked like a charm if you follow the directions!!!
Having, in my young adult life, topped out at a respectable 6'2", I decided it was time to move on from the twin bed that I've been using literally since the moment I outgrew my crib. After doing about 20 minutes of mattress shopping, I discovered mattress shopping wasn't for me. When I realized that one of these in the XXL size is exactly half the size of a queen mattress, I took the plunge, ordered two, put them in a sleeve to hold them next to each other, threw on a queen memory foam topper and some sheets, and called it a day. Little did I realize that the result would be the most comfortable bed I've ever slept in. It was significantly less expensive than a traditional mattress, and when I go car camping, I can bring one with me and experience the comfort of my own bed in the woods. As an added bonus, I can inflate the two pads to different firmnesses when my girlfriend sleeps over. Yep. It's basically a sleep number bed. 10/10 would recommend this strategy for comfort-conscious dirtbags everywhere.
We bought for week long camping for the Iowa Ragbrai. We have to have our tent/gear ready each morning by 7A. The mondoking was like sleeping on your bed at home. We purchased 2 XL and the sides allow you to put a queen sheet around both and they stay together well. The R value is fabulous. On chilly nights we stayed warm and other riders complained about their blow up air mattresses being cold. Our tent was damp with dew but we were toasty warm and I would never go back to an air mattress. My son slept on it at my in-laws basement and he said the ground did not seep up through like the air mattress and he was warm. It is very comfortable and you don't feel like your camping but glamping as it feels like your bed at home. You can choose how firm you want the mattress by letting air out or letting it keep inflate. It takes a bit of practice to unflate & get it into the bag, but it is doable. The only issue we had is on our last day of Ragbrai, one of our mattress's sprung a leak by the air valve and I sent in to be replaced as it is still under warranty. Hope to get it back soon. If your on the fence about this mattress. Don't be, was a great choice and is a great mattress.
I love that this mattress is incredibly comfortable but I can't get it to deflate enough to put it back in the bag. It's very frustrating. I've had other thremarests before an have never had any problems. Any tips out there?
I purchased this mattress for some upcoming ski road-trips where we will be staying with friends along the way. I have it inflated at home and find it very comfortable. My dog wholeheartedly approves of it too!