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  • Therm-a-Rest - NeoAir XTherm Sleeping Pad - Vapor

Therm-a-Rest NeoAir XTherm Sleeping Pad

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    56 Reviews


    Made for winter camping.

    On your next winter camping trip, enjoy the highest warmth-to-weight ratio of any Therm-A-Rest air mattress by using the NeoAir XTherm Sleeping Pad. This lightweight pad insulates and cushions you from the hard, frigid ground below without tacking on the weight or bulk normally found in winter-worthy sleeping pads. ThermaCapture layers within the pad keep you toasty by efficiently insulating and reflecting heat back to your body to keep the cold ground from sucking away all your precious warmth. As you toss and turn, the durable materials resist jabs from rocky campsites, while the soft, no-slip top fabric boosts comfort and keeps you from slipping off your pad when you're sleeping on uneven ground.
    • Lightweight pad for cold-weather trips
    • 5.7 R value is suitable for winter camping
    • Ripstop nylon resists punctures
    • ThermaCapture layers trap air and reflect heat
    • Mummy shape shaves ounces off
    • Item #CAS002O

    Tech Specs

    [top] 30D rip HT nylon, [bottom] 70D nylon
    [Regular] 72 x 20 x 2.5in, [Large] 77 x 25 x 2.5in
    Packed Size
    [Regular] 9 x 4in, [Large] 11 x 4.5in
    Claimed Weight
    [Regular] 15oz, [Large] 1lb 4oz
    Recommended Use
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Awesome for Ultralight.

    • Familiarity: I've used it several times

    This pad is perfect for ultralight backpackers looking to lighten their load and put on some serious miles. at 15oz and a 5.7 R-value, this thing is hard to beat. My only complaint would be how noisy it is. Personally, I sleep like a rock so it didn't bother me, but some people I was with don't sleep as sound and it kept them up, apparently.

    Failed on Aconcagua

    • Familiarity: I've used it once or twice and have initial impressions

    My trip required an easy to pack, lightweight, insulating, and dependable sleeping pad. Six days into the trip, this useless item developed a leak. I used this pad with a foam pad and inside my mummy bag.It shouldn't have failed. Between17,000 to 24,000, I didn't have adequate insulation from the ground cold.

    Light as heck!

    • Familiarity: I've used it several times

    I was looking for a sleeping pad that packed down small, was lightweight, and still provided adequate warmth and comfort. So far the Neoair Xtherm has met all my expectations. Yes, as stated in other reviews it is a bit noisy, but you really have to rock and roll to be annoyed by it. You can actually feel your body heat reflecting off the pad and back on you. Look forward to putting many miles on this pad. At 5’10” the regular size fits me perfect. I’d say if you’re any taller, get the long.

    Warm and comfortable

      This pad is nice and lightweight, and it keeps you pretty warm. It is a bit noisy, but I'm a heavy sleeper and was pretty used to it in no time. Very compressible, too. It takes up little room in the pack. I slept on it in the low 30's when there was some wind and a slight drizzle, and with an appropriate bag, I was comfortable all night.

      Warm, Comfy, and Light

      • Familiarity: I've put it through the wringer

      This pad is a game changer. It light and packs small and one of the highest R valued pads on the market. I take this on any winter camping/overnight ski touring I do, and it is awesome I do not find the noise bothering, neither does the wife who is a much lighter sleeper, my bag seems to dampen it enough for it not to bother us. I find all pads will lose some air at night due to temp fluctuation, but this has never leaked on me in 4+ years.

      Super Warm!

      • Familiarity: I've used it once or twice and have initial impressions

      This sleeping pad keeps you off the ground and keeps you warm using your body heat. If you sleep cold, this is the perfect solution.

      Its warm, but wear ear plugs

      • Familiarity: I've put it through the wringer

      title says it all, its warm but its super crinkly, you move a pinky, which i am missing and you can hear a rustle. but it does the job, holds air, its relatively light, its warm, and you can hear the sound of rice krispies popping all night! Ive used it for a year while working for a conservation corp where we slept outside for months at a time. it would get down to 10F especially in north kaibab in the winter and early spring and i slept pretty warm, given i had a good sleeping bad as well though. it did get a hole in the bottom, and once it does it loses air fast, but i was able to patch it no problem, that being said the all around material is pretty thin, to keep things light, if you dont clear the brush under, or have a good footprint you will pop it on a twig or micro cactus that are just coming out of the ground

      Adequate technical piece for alpinism

      • Familiarity: I've used it several times

      This is a review for technical users (climbers, skiers, etc), and is less relevant for non-technical uses like casual camping or even expeditionary basecamps. Long story short: if you need an ultralight cold weather pad, this will do, but the regular sized one pairs better with other ultralight gear, so avoid the temptation to get a large.

      Used this pad around 5 times camping on snow/ice at altitude (5000-6000m), mainly in glacial high camps at the base of climbs, but also on the climb itself in one case. It kept me warm, and packed small so it was easy to fit inside a technical pack, and is lightweight. I have not had durability issues, but also have not stressed it too much.

      I sleep with ear plugs (wind) so I have no opinion on how noisy it might be.

      The single compartment design makes the pad lightweight but also extremely vulnerable to damage. It is only fully functional when fully inflated with the user laying flat, otherwise it tends to compress in areas and leads to notable heat loss into the ground. When fully inflated it resembles a balloon, and seems equally susceptible to catastrophic failure. This is a direct consequence of the design of the pad, and the price you pay for going ultralight. Were it to have popped, I had ropes and a pack as a backup, or baring that retreating through the night. Not ideal, but tolerable for me. If that's not tolerable for your use cases (e.g. retreat is a multiday affair), this may not be the right purchase.

      This is a technical piece for me. For more casual/everyday use I would get something with more redundancy (e.g. Sea to Summit Comfort Plus with the dual compartment design) or pair a summer pad (<3R value) with a 3/4 length foam pad (e.g. therm-a-rest z lite). However, for demanding multiday outings at the edge of my physical and technical abilities nothing else available on the market competes, so I'll begrudgingly take this balloon-pad and hope it doesn't pop. Wish something more durable and as lightweight were available, but far as I know there's nothing else.

      Final note: light and fast users would probably prefer the regular size to the large. The size large is too large to comfortably fit two inside a bibler-style tent like the black diamond firstlight. It is also too wide for comfortable use with some bivy sacks. I found it stretched my black diamond twilight sack laterally, tightening the fabric over my chest so much I couldn't rotate my body. I've since replaced it with a regular sized pad, so that next time I'm not stuck enduring spindrift to the face all night.

      Adequate technical piece for alpinism

      Thank you for this review. This is exactly the kind of information I needed and I appreciate you covering the technical use and real world application for alpinists. I've got mine on order so I can put it to the test on an upcoming climb in a few weeks! Cheers and Happy Trails.

      Warm and Noisy

      • Familiarity: I've put it through the wringer

      I've used this pad over approximately 35 nights in the Sierra Nevada.
      Pros: It is extremely warm. The relatively high r-value of the pad is noticeable. It has kept me toasty with my 20F mummy bag in temps down to 14F. It does a great job of covering up rocks in the event of poor campsite selection. I've used it on granite slabs and didn't notice I was sleeping on rock. I'm 6'3" and have the long version. It is the perfect length for me. I also love that it packs down to a bit smaller than a Nalgene bottle.
      Cons: This pad is loud. My tent and camp-mates almost always remark on how annoying it is to listen to me during the night. Usually I respond by suggesting they find a pad as comfortable as mine. In their defense, I am a side-sleeper who tends to move around a bit during the night, which brings me to my only real complaint. I wish this pad was a bit wider. I do find that I sometimes get the "falling off the bed" feeling in the middle of the night, if I'm not centered on the pad.

      Quality Pad Best Used for Ultra-Light

      • Familiarity: I've put it through the wringer

      I used this pad last summer while camping for work in Central Asia. I wasn't able to test it in extreme cold temps, but on really hard ground it provided great padding, and the no-slip surface was great to have so that my bag didn't slide off all night, which has been a complaint I've had with other pads in the past. It takes a few minutes to blow up manually (bribe your friend to help and it goes easier), but I found that getting it almost but not completely full keeps your hips from hitting the ground but means that you don't slide off it from it being over-full.
      My only two complaints with it are these. It is a bit loud (as others have mentioned), which is less of an issue if you are bone-tired, but still if you can't get a good night's sleep when you need one could be an issue. Secondly, for a tall person (I am almost 5'11"), I found that the mummy shape meant it was so hugely tapered that all night whenever I changed position my legs from the hips down would fall off or my upper body would start to drift off at the hips, and I would have to bodily lift myself off to re-position in the middle of the pad, working to get my sleeping bag re-adjusted and in place because of the friction provided by the no-slip surface of the pad. To give you an idea dimensions I was dealing with: I'm 5'10" and 140 lbs so when lying flat I still have space on the pad.
      I would say if you don't really move at all in your sleep, or if you are packing into the backcountry and need to really cut down on your weight, this is a great pad to consider. If you are riding/driving, have a sled, or are going by water craft (kayak, canoe, etc), and if you are tall or move when you sleep, I would consider a wider pad.


      • Familiarity: I've used it several times

      This pad is amazing! I used it winter camping a number of times and it kept me quite warm! As others have noted it is a bit noisy, but for those of us who sleep like rocks, it isn't too much of a problem.

      It's incredibly light for what it offers, packs down to almost nothing, and should be the first pad you reach for for winter camping.

      The only person I wouldn't recommend this too is someone who moves a lot in their sleep and has trouble getting to and staying asleep simply because of the noise factor.

      Warm & lightweight, but noisy and narrow

      • Familiarity: I've used it once or twice and have initial impressions

      I bought this as a gift for a friend and here's what he had to say: I chose this for it's high R-value, to bolster the warmth of my sleep system, for which it does deliver. The pad is not uncomfortable, but crinkles loudy if you fidget too much, and a bit narrow, so perhaps not great for a restless sleeper. In winter those seem minor compromises for the warmth it delivers, for more temperate trips, I'll look for something wider and quieter.

      Catch Zs, Not A Breeze or Roots of Trees

      • Familiarity: I've put it through the wringer

      With the Therm-a-Rest NeoAir XTherm, you will be catching Zs all night long. Never once will you be woken up in the middle of the night feeling the cold of the ground conducting through the compressed insulation of your sleeping bag onto your back. Never once will you go to bed exhausted from the trail, only to be woken up hours later with a sore hip on the ground due to the air in the pad cooling and compressing. The days of a bad sleep in the backcountry are over. The NeoAir XTherm is simply the best air pad on the market. With an R-value of 5.7 quilters will laud the warmth supplied by the pad, and side sleepers (as myself) will never wake up again with their hip on the ground. The 2.5 inch thick pad is thick enough to be able to let some air out of the pad to really dial in the comfort and sleep on a cloud. The internal horizontal baffling of the XTherm is genius - the pad doesn't bounce around like an air mattress when shifting weight. I'm 6'2" and I got the Long size so that I wouldn't have to put my pillow off of the pad - great decision and well worth the extra 2-3 ounces. The pad is definitely louder than probably other air mattresses, but it's never been an issue to fall asleep for me in the 8 times that I've used it. Can't put it any more plain - if you are tired (pun intended) of not getting a good night's sleep in the backcountry, order this pad. It will change your whole view on how great sleeping in the backcountry can be.

      All Around Great Sleeping Pad

      • Familiarity: I've put it through the wringer

      Agree with others who have mentioned how noisy this can be when you're shifting around. If you're a heavy sleeper like me, it won't be an issue – can't always say the same for anyone sharing your tent. Super light, packs down small, and well made. A little slippery – I tend to be a side sleeper and sometimes I'll wake up to find that I've somehow slid completely off this pad. Overall, a great sleeping pad.

      Exceptional piece of equipment

      • Familiarity: I've used it once or twice and have initial impressions

      Went to kirk creek campground at big sur on december 2017 and the temperature dropped to about 4 degrees celcius at night. I couldn't be happier with the warmth and comfort this pad provided. Super lightweight and packable as well! My buddy who was sleeping in the tent next to me could hear the crinkling sound from the pad. If a noisy pad annoys you or is a factor of consideration, i would recommend to stay away from this pad. Otherwise, if you are a thru hiker and is looking for a lightweight and comfortable pad, i would highly recommend this pad.

      Cream of the crop

      • Familiarity: I've used it several times

      Great pad that's very light and packable, it was very comfortable and warm on a September backpacking trip which included 8 days of snow. There's nothing else out there that offers the warmth and function of NeoAir XTherm!

      Is the NeoAir model the same as the NeoAir Xtherm? Thought I ordered the XTherm but only labeling on the product is NeoAir

      Hey David! There isn't a straight up NeoAir model, there are multiple variations of it, such as the NeoAir XTherm, NeoAir Trekker, NeoAir XLite, etc. I can gladly look up your order to see what exact model you ordered and see if we shipped the correct one out to you! Feel free to email me at and I can get things figured out for you!

      Is that 4 seasons sleeping pad ? Is it self inflating ?

      Is this out of stock again since James's inquiry? or have you not gotten the expected shipment from 3/23? At any rate, when will this be in stock again?

      Hey Jon,

      Unfortunately we're still waiting on our shipment from the vendor.

      Sometimes they come in on time, other times we have to wait a bit longer.

      Shoot me an email if you'd like me to notify you when they come in stock.

      Shoot me an email anytime you have questions!

      Jared D.

      Expert Gearhead


      Gear Heads,

      Any idea when this will be in stock? I was looking to possibly purchase one.


      Best Answer


      We've got an order in for a whole bunch of the regulars and longs. We're hoping they get to us around the beginning of next week (approx 3/23)

      Shoot me an email if you have any questions!

      Jared D.

      Expert Gearhead


      Hey James,

      This pad will come with the proper stuff sack that also doubles to inflate the pad as well.

      Shoot me an email anytime you have questions!

      Jared D.

      Expert Gearhead