
Klymit - Inertia X Lite
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Reddit Reviews:
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Based on 1 year's data from Feb 15, 2026 How it works
Liked most:
3
8
"Comfort is subjective. I find my Klymit pad to be very comfortable, more so than most of the other sleeping pads from bigger name manufacturers that I tried when I was shopping around."
"shockingly surprised that how comfortable it was in my mid 40s on the hard ground ... I even had room for an inflatable pillow because of it"
"I have a single that I use for backpacking and it’s pretty nice. ... I used to have a really lightweight thermarest but it wasn’t comfortable, especially for side sleeping with bad shoulders."
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1
"Tiny volume for each."
"I have a single that I use for backpacking and it’s pretty nice. ... I used to have a really lightweight thermarest but it wasn’t comfortable, especially for side sleeping with bad shoulders."
"I use it for bikepacking or solo backpacking. ... And they’re smaller than a Nalgene!"
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0
"Tiny volume for each."
"I use it for bikepacking or solo backpacking. ... And they’re smaller than a Nalgene!"
"I’m a big fan of the Klymit sleeping pads because they shrink down to a very small bag."
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"I have a klymit inflatable that took me across Scotland."
"Ours has lasted 7 years and is still going strong."
"Ive been using one for years with no issues!"
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"I've done this for years and never felt the need for a $200 + sleep mat."
"Super light and cost effective."
"Walmart in the US has Klymit ones for like $40 and they’re not terrible quality."
Disliked most:
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11
"Klymit lies about their r value and it’s really closer to 1.6 or 2. ... I am pissed at them for selling uninsulated pads marketed as insulated."
"i also bought a klymit pad and froze ... their R value is completely fabricated"
"Klymit straight up lies about R values. ... Their advertised R values are not ASTM rated values. You have to look buried in their specifications to find the ASTM value."
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"Klymit lies about their r value and it’s really closer to 1.6 or 2. ... I am pissed at them for selling uninsulated pads marketed as insulated."
"i also bought a klymit pad and froze ... their R value is completely fabricated"
"Klymit straight up lies about R values. ... Their advertised R values are not ASTM rated values. You have to look buried in their specifications to find the ASTM value."
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8
"I wouldnt get the klymit at all."
"I’m a huge Klymit for many things, but their beds only offer insulation. This OP wants some comfort. Even their $200 pad short changes."
"Just spend a week using the Klymit and it was not very comfortable."
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"of the two I bought both of them wouldn’t hold air in them. It’s the valve system they use, it leaks air."
I haven't used it standalone below 2C. In winters gobe by, I have "stacked" with GG thinlight, Switchback and Klymit Xlite torso size (it's kinda like a frame rather than a total inflatable). Or another combo was Switchback with shorter sections of Exoed Flexmat- orange one. This is my conundrum at the moment, and I have moved to a much colder climate. I have ordered a thermarest womens prolite plus self inflating mat in short 120cm size as when side sleeping that will have all but my toes on it anyway. It's R Value is 3.6 I think and it weighs 450g. With a CCF I think I will be ok subzero as anecdotally I fond ccf in those conditions perform better than the R value would suggest, whereas the inflatables I had pre-2021 always seemed to perform worse than advertised. I know it seems very old-fashioned and not UL to get a SI mat, but unless I really have to get an inflatable mat for Winter, I would really rather not.
I use a cheaper blow-up Klymit with some reflectix r21 over the top. Super light and cost effective. My blow-up pillow has an elastic strap, which i use to keep them together at the head, and at the toe, I just use a piece of paracord. I've done this for years and never felt the need for a $200 + sleep mat.
I have a $39 Klymit I've been using for years. Thermorest z lite under that and reflectix under my bag when it gets real cold.
If it's not cold, you can save space and weight with an uninsulated inflatable. I have a klymit inflatable that took me across Scotland. I used a z-lite on top of it for cold nights since that is negligible weight and can be stored externally. But my real answer is a hammock.
We had an alps mountaineering full sized inflatable. Got about 6” thick, packed down into a sack about the size of a plastic grocery bag, and came with a rechargeable pump. Never leaked until our dog got freaked out and put a hole in it one night. Bit big for backpacking but we took it into the BWCA a couple times and car camping a lot. Klymit(sp?) makes a decent double that packs down too I think, and they’re typically a bit cheaper than their competitors. I have a single that I use for backpacking and it’s pretty nice. I used to have a really lightweight thermarest but it wasn’t comfortable, especially for side sleeping with bad shoulders. My favorite upgrade we have made are our Nemo sleeping bags. They are shaped specifically for side sleeping and are extra wide. They also zip together. Check out the Nemo disco best bag I’ve ever used
I've been using a Klymit single for a few years. I like that it packs up smaller than a soda can. I'm camping and don't expect all the comforts of home.
I upgraded and it was worth it. But the klymit served me well for a long time. Im just a restless side sleeper so nothing is perfect
Yup. I went from a yoga mat in my 20s to a 1” pad to a 2.5” pad and now that hit 40 I splurged for the exped mat. For backpacking I still use the klymit
I have used an InsulMat thermo max for years. The Klymit is also really nice. You just have to be careful with blow up pads because obviously you fracture it or puncture, you get little warmth. Most are durable enough though.
Don't do it. Bought a cheap pad with air cells like that for my first backpacking trip, absolutely miserable sleeping experience and I have a very high tolerance to sleeping in uncomfortable situations. Laying directly on the ground was better, and whatever r rating was claimed was absolute bs. We were in a small canyon next to running water and an absolutely wicked wind storm kicked up, I froze my ass off that night, spent most of awake trying to get warm and willing the sun to come up. Second pad was a Klymit with an allegedly good r rating, same air cell style shown in the photo you attached. Did three days at 8000 feet in early March in Southwest Utah, froze my absolute ass off. I had Bought a 15 degree Big Agnes bad to match my fancy new Klymit pad in an attempt to avoid being cold again. was in a two person ultralight tent less than a foot away from one of my companions, and still woke up COLD. I'm talking laying in your bag scared to move and hit a cold spot, praying for the sun to rise, dreading going to sleep the following night cold Finally forked over the cash for a quality Thermarest Prolite Plus and I'm here to tell you for 150 bucks the difference in sleep quality but more importantly WARMTH is insane. Did three days at 9,500-10,000 feet also in Southwest Utah and slept like a baby every night. Spent a week in star valley Wyoming sleeping on a cot in a field about 15 feet away from the very cold Flat Creek with the Thermarest pad and a 15 Degree Big Agnes bag. would wake up in the morning with my bag completely iced over with frozen morning dew as well as the entire field, I was warm as could be in that bag, like I was in bed at home. Sleeping on a wack pad is something I would never wish on anybody. I would be more willing to roll the dice on my bag than my pad. If temperature isn't a concern whatsoever then go for it I guess but that air cell style is more uncomfortable than sleeping on the ground, I'd rather have a fourteen dollar foam pad than that air cell dogshit. Spend the money, sleep comfortably, enjoy your time. There are corners that can be cut to save you money, but your sleep system is absolutely not the place to do it. At best you could be uncomfortable when you're trying to recover so you can go have fun and walk a bunch with your friends, at worst your life could be in danger.
I second Klymit for a pad. Ours has lasted 7 years and is still going strong. For a bag, I got a steal on an REI used bag online. I’d check there first. Or, look for an outdoor gear rental place. REI is one place, but two state universities near us in Minnesota have a gear rental store open to everyone. It’s a good way to start without a huge monetary cost.
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