• Online:
  • URL for this product:
  • From the U.S. and CanadaCall 1-800-426-4840
  • Mon. through Sun., 4 a.m. through 11 p.m. PT.
  • InternationalCall 1-253-891-2500
  • Mon. through Sun., 4 a.m. through 11 p.m. PT. English language only.
Therm-a-Rest NeoAir XTherm Sleeping Pad


    Therm-a-Rest NeoAir XTherm Sleeping Pad

    The Therm-a-Rest NeoAir XTherm sleeping pad lets you sleep outside in any season. The high R-value, thickness and layers of reflective barriers bring greater comfort and warmth to backcountry outings. See details

    • $179.95 - $219.95

    Item # 829850

    The Therm-a-Rest NeoAir XTherm sleeping pad lets you sleep outside in any season. The high R-value, thickness and layers of reflective barriers bring greater comfort and warmth to backcountry outings.

    Product size and color
    * Color/Size is out of stock but can be backordered.

    The Therm-a-Rest NeoAir XTherm sleeping pad lets you sleep outside in any season. The high R-value, thickness and layers of reflective barriers bring greater comfort and warmth to backcountry outings.

    • 100% Satisfaction Guaranteed
    • Gear and Advice You Can Trust

    This item ships for free! Learn more

    To view videos or use the zoom feature on REI's websites, please download the latest version of Adobe Flash Player.


    The Therm-a-Rest NeoAir XTherm sleeping pad lets you sleep outside in any season. The high R-value, thickness and layers of reflective barriers bring greater comfort and warmth to backcountry outings.

    • Therm-a-Rest combines advanced, patent-pending technology and materials with decades of experience to offer a lightweight, warm and incredibly compactible sleeping pad
    • With double the insulating properties of the NeoAir Trekker, this pad incorporates a patent-pending Triangular Core Matrix™ technology for high warmth and low weight
    • Innovative baffling creates over 100 internal cells along with 4 layers of reflective barriers that trap warm air and return heat back to your body for year-round warmth
    • With an R-value of 5.7 and 2.5 in. thickness, this sleeping pad provides excellent insulation from the cold ground
    • Supple, yet rugged 30-denier polyester fabric on top and a durable 70-denier nylon on the bottom provide a quiet sleep surface
    • Therm-a-Rest NeoAir XTherm pad includes a repair kit and combination pump sack/stuff sack
    • 40-liter pump sack features a valve at the bottom that connects to a valve on air mattress; to use as pump, loft the sack, seal, roll and then push air into mattress

    Please note: Therm-a-Rest products can only be shipped to U.S. addresses.

    Made in USA.

    Item 829850

    Members: earn a
    $20 bonus card

    When you spend $100 April 14—29

    Single-use bonus card redeemable by
    REI members MAY 2—12, 2014.

    Not a member? Join Now!
    Add to Cart

    REI Membership

    View specs for sizes: M, L, Regular

    Therm-a-Rest NeoAir XTherm Sleeping Pad Specs
    Best use
    Air padAir padAir pad
    4 x 9 inches4.5 x 11 inches4 x 9 inches
    66 inches77 inches72 inches
    20 inches25 inches20 inches
    2.5 inches2.5 inches2.5 inches
    66 x 20 x 2.5 inches77 x 25 x 2.5 inches72 x 20 x 2.5 inches
    168 x 51 centimeters196 x 63 centimeters183 x 51 centimeters
    14 ounces1 lb. 4 oz.15 ounces
    0.41 kilograms0.56 kilograms0.43 kilograms
    Sleeping pad type
    Sleeping pad shape
    Insulation type
    Repair kit included
    Stuff sack included
    Packed size
    Pad length (in.)
    Pad width (in.)
    Pad thickness (in.)
    Dimensions - metric
    Weight - metric

    Therm-a-Rest NeoAir XTherm Sleeping Pad

    Loading Ratings & Reviews...

    Therm-a-Rest NeoAir XTherm Sleeping Pad is rated 4.84 out of 5 by 25.
    Rated 5 out of 5 by from Sleeping on snow? You want this pad. As many who get into the outdoors do, I'm in the process of replacing my first batch of cheaper/heavier car-camping type of gear with costlier but better/lighter backpack-camping gear. In my move from my first pad (which rolled up to about 6"x26" and weighed 4 pounds) to the Xtherm (which rolls to only 4"x9" and weighs under 1), I could not be happier. The price stings a bit, but the comfort this puppy affords you on the upper deck of a dug-out snow cave makes it worth every penny. I've used this pad only twice so far this winter, but have been thrilled with it both times. First time was on the cold floor of a breezy old fire lookout on a moderate peak. Though my 20° bag wasn't warm enough to keep the rest of me comfortable, my back was toasty thanks to the reflective layers inside the Xtherm, bouncing body heat right back to me. Most recently, I had the pad stowed in my pack for a single overnight up on Mount Baker, above Artist Point. After digging out a cave, I setup the Xtherm right on the snow base of my sleeping area, and climbed into my bag for the night. I was so warm, when my alarm went off to remind me to get up in the middle of the night & shoot photos of the near-full moon right over Baker, I turned it off & refused to get out of the cave until morning. Others seem eager to point out that the pad is noisy. I guess it's a LITTLE talkative, at least if you're comparing it to any open-cell or closed-cell foam pad, and maybe even some other all-air pads (i.e. Big Agnes, ExPed, etc). I find it to be comparable to other NeoAirs from Therm-A-Rest, especially the Xlite, but also the Trekker and AllSeason, though to a lesser extent. And for what it's worth, while I have it setup and use it in the field, I find it to be MUCH less noisy than when I've tested it at home. Perhaps it has to do with the material being muffled by a sleeping bag on top, and whatever surface it's pressed against on the bottom. BUT.. I'm a pretty heavy sleeper, so I might not be the best judge of this aspect. I love that it's a whopping 2.5" thick. I'm no small guy, but even when I prop myself up with a hand or elbow, I still don't bottom out on the pad. I would say my biggest qualm with this product isn't even the pad itself, but rather the stuff/pump sack which comes with it. Calling it a pump sack is a bit of a misnomer. It works, but don't expect it to work quickly. To reduce/eliminate moisture from my breath from being introduced into the pad �?? and later condensing and freezing inside of it, as it is pressed against cold snow �?? I've tried to inflate the pad by lofting & pumping the sack, with it attached to the pad's valve. I gave up after about ten minutes, and just inflated it the regular way �?? lung power. Perhaps it was the cramped quarters which made it so difficult. Even before my most recent outing with this pad, I'd considered purchasing the large pump sack / jembe seat that Therm-A-Rest makes and sells separately. I tested that in a store, and it works great, as it's so much larger than the pump sack the pad comes with, and weighs so little. However, I'm now considering hunting down the Therm-A-Rest NeoAir Mini Pump, which REI doesn't (yet?) carry. I believe I read that Cascade Designs licensed the design from Camp-Tek, a design which has received really good reviews. The thing weighs under 3oz, can run off of batteries from my headlight, and won't introduce any moist/warm air into the pad on cold nights. Another downside to the included pump/storage sack is its size �?? it's quite spacious, and unless you use an additional compression strap around the pad, it doesn't hold it very snug/compact. As I don't expect to need it as a pump sack once I find the NeoAir Mini Pump, I repurposed a smaller stuff sack I managed to acquire elsewhere, into which the snugly-rolled pad fits perfectly! This pad is an awesome product. If you've got the scratch, buy it.
    Date published: 2014-04-13
    Rated 5 out of 5 by from Mat for a Side Sleeper My hip does not dig into the ground when sleeping on my side. This has been the bane of my camping experience with inflatable mats until now. Been sleeping for 14 days straight on this mat on a bike tour and have always woken up happy. I've had the Prolite 4 for about 7 years and it was not only a warm mat great for all seasons and one of the thickest on the market at that time of purchase to give me some relief when sleeping on my side. The neoair beats it and it also packs smaller than the Prolite 4 due to no foam padding. The self-inflating mats were never good at inflating anyways and would always need to be blown up. It's been the perfect addition (upgrade) to our bike touring kit. But just some caution about pumping it. Some people fill it by breathing into it and it's not recommended because your breath would add in extra moisture that could conduct heat from your body - especially with no foam insulation to stop air circulation. I recommend the battery powered pump. It is time consuming to pump with the sack; however if you're going ultralight for the weekend, it's no problem. It is annoying when you're sleeping on it 2-weeks straight with two mats (as a couple) to pump and super tired at the end of the day. We got the battery powered fan pump to fix that issue and it's been a pleasure. We could dual purpose our headlamp AAA batteries to power the pump. We also carried a nozzle just in case anything goes wrong. What is MISLEADING about the product description is that the pump stuff sack is included. This would lead you to believe that you would be set after purchasing the mat. While you could pump with the included sack, if you DID NOT purchase the airtap nozzle (sold seperately), the opening would stretch. So you need to add that in the purchase price but what you DO NOT HAVE to buy is the separate (orange) pump sack. That pump sack is really huge and could fill the mat faster compared to the included sack. Still, I would recommend this mat to anyone for their next purchase.
    Date published: 2014-04-13
    Rated 5 out of 5 by from Snow certified, not living room tested Tried it out local at the beach and found the comfort level top notch, but didn't want to review it based on that. April 10th we went on a 5 night backpacking trip to Twin Lakes Sequoia where the snowpack was 3-5 feet beneath us. Lets just say I was sleeping in comfort at 20 degree temps where a non insulated airmat would've left me sleeping on ice. You can have a zero degree sleeping bag on a non insulated air mat and freeze in 30 degree temps, so this Xtherm actually lets your bag perform as it should. There is a rubberized feel to the top and bottom of the mat which helps you stay put at night and kept my inflatable pillow in place. I prefer to inflate it, then lay on my side on it, and let air out till it conforms to my body better. Temps create fluctuations in fill so keep that in mind.
    Date published: 2014-04-10
    Rated 5 out of 5 by from Best Bang for Your Buck Sleeping Pad I went to Havasupai and slept on a thin mat on my side. I am a side sleeper and when I woke up had very sore hips from the hard ground. Then the next night was worse since I was sleeping on those same bruised hips. I vowed to find me a sleeping pad that was made for side sleepers. I like to get the most bang for my buck and after reviewing many sleeping pads on, the Therm-a-Rest NeoAir XTherm Sleeping Pad by Therm-a-Rest seemed like a no-brainer. I wanted a pad that would prevent my hips (or any other body part) from touching a hard surface, fit easily in the inside of my pack, wieghed almost nothing, and kept me warm. This sleeping pad delivers all of this and more! I love it and would try to sell this to anyone that would give me the time of day. I went to the Ansel Adams Wilderness of the Sequioa National Park in California in October. The lows were 28 degrees and we even got snowed on. My back side was warm the entire night. I was quite impressed with the R-Value layered insulation technology. I was able to blow it up very quickly and enjoyed how I could adjust the firmness while laying in my sleeping bag by simply reaching up to let a little air out. This sleeping pad works perfect for all types of sleepers from firm to chushy. You can pay more for other sleeping pads, but when it comes down to maximizing comfort while minimizing wieght and size, then you will not find a better product. Other reviewers complained about the noise while they were moving. I found this not to be true. You will notice that it is very crinkly sounding when unrolling it and blowing it up, but once inflated the noise factor reduces tremendously and is a non-issue for you and anyone else in the tent. The only thing that gave me concern was potential for punctures. You can't have a super lightweight sleeping pad and still have thick material. I wouldn't want to test the durability with a sharp object so I am very careful with this proud investment of mine. I give this product an official award of excellence!
    Date published: 2014-04-06
    Rated 5 out of 5 by from Light, compact, comfortable and warm! Used product in 20 weather with a single season bag w/ a liner. Stayed warm and toasty.
    Date published: 2014-03-26
    Rated 4 out of 5 by from Worked great in the snow I used this on a winter backpack in the Smokies. I found it more comfortable, even on frozen ground, than my ProLite or my RidgeRest. I slept one night on a root that I never knew was there until striking the tent the next morning. The XTherm lives up to its cold-weather promise. I did not get cold on either ground or snow. Unless I was kneeling on it, my body never fully compressed the pad to the ground. It was certainly warmer than the ProLite and RidgeRest. It is light and compact. It is easy to pack. The only drawback for me is that it is slow to inflate using the stuff sack pump. You need to budget about 5 minutes to fully inflate it. I used one or two breaths to complete inflation to my desired firmness.
    Date published: 2014-03-26
    Rated 5 out of 5 by from Very Warm, Very Comfortable. I was worried that this would be "crinkly"/loud and that my bag would slide off of it. Neither happened. Once you put your bag on it is is practically silent and your bag sticks to it like glue. Great product. Super warm, you can actually feel the heat coming back up from the pad. I'll say it is TOO warm for summer use. If you are going to be using this above about 50F/10C I would advise the XLite instead of the XTherm.
    Date published: 2014-03-26
    Rated 5 out of 5 by from NeoAir XTherm Lg - Rest comfortable NeoAir XTherm - Large I got the Large for the width and length at the expense of weight and cost. It was well worth it. Light and comfortable and warm. No more back aches due to cold hard pads. I will be interested in finding out how well it works snow camping. It is not exactly quiet, but much quieter than the NeoAir Xlite. Filling the pad takes a few minutes with the pump sack, but better then mouth blowing for several minutes. It is not inexpensive but is replacing three other self-inflating ThermaRest and Big Agnes pads which will now be given to family and Scouts.
    Date published: 2014-03-26

    Ask a question and have it answered by REI product experts and fellow outdoor enthusiasts. Need immediate assistance? Use Live Help.

    Loading Questions & Answers...

    How are we doing? Give us feedback on this page.

    FREE SHIPPING With $50 minimum purchase

    MEMBERS, EARN A $20 BONUS CARD! When you spend $100 April 14-29. Single-use bonus card redeemable May 2-12. Details
    • Join REI today!
    • REI Membership
    • REI member benefits include an annual refund (typically 10% on eligible purchases).
    • Join REI today!
    • Sign up for REI Gearmail®
    • and get 15% off selected items!
    • Store Locator
    • Locate an REI store near you.
    • Find a Store
    © 2014 Recreational Equipment, Inc. All rights reserved. REI, the REI Tree and Mountain design, Novara, and
    REI Adventures are trademarks of Recreational Equipment, Inc.

    Find REI on: FacebookTwitterYouTubeFlickrMobile site