Reviews You Can Rely On

Therm-a-Rest NeoAir Xtherm Review

A true jack of all trades sleeping pad with a highly effective updated valve system
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therm-a-rest neoair xtherm sleeping pad review
Credit: Therm-a-Rest
Price:  $240 List
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Manufacturer:   Therm-a-Rest
By Brian Martin ⋅ Review Editor  ⋅  Apr 17, 2023
  • Comfort - 30% 7.0
  • Weight and Packed Size - 30% 7.0
  • Warmth - 20% 9.0
  • Ease of Inflation - 10% 8.0
  • Durability - 10% 6.0

Our Verdict

This sleeping pad has recently been updated to the Therm-a-Rest NeoAir XTherm NXT.
Superior warmth
Small packed size
We love Therm-a-Rest's updated valve system on one of our all-time favorite sleeping pads. Despite the previously dated and frustrating valve system, the Therm-a-Rest NeoAir XTherm was still our Editors' Choice winner, year after year. The newest update has retained the lightweight, packable design, and excellent warmth — all while integrating a newly designed and highly functional inflation/deflation valve. This new valve is lightyears beyond the functionality of the old valve, which was our only gripe with most Therm-a-Rest pads. In short, the overall performance of the XTherm is exceptional.

Our Analysis and Test Results

Product Update — April 2023
Therm-a-Rest released the new NeoAir XTherm NXT this year. This revised sleeping pad is 1.5 ounces lighter, half an inch thicker, and has an increased R-value of 7.3. They've also used a thicker 70D material for the underside of the pad. We will be testing the new model for our updated sleeping pad review, and in the meantime, our affiliate links point to the new NXT version.

This pad has some updates. The dimensions and weight remain the same, but there is an updated valve, new fabric, and the R-value has been upped. Too often in our fast-paced consumer-oriented outdoor market, quality products are discontinued in favor of something else simply to have a "new" item on the market. We're thankful that Therm-a-Rest went against the grain and kept the XTherm largely intact, with the most notable difference being the impressive winglock valve.

Performance Comparison

The XTherm kicked butt and took names in our sleeping pad review. We had high hopes for the update, and we were delighted with the results.

therm-a-rest neoair xtherm sleeping pad review - the xtherm was one of the best sleeping pads we tested again! it is...
The XTherm was one of the best sleeping pads we tested again! It is light enough to allow for the addition of the Z Lite without too much struggle. Not only does the Z Lite create a pop-free barrier between inflatables and the ground, it adds a significant insulation layer between your body and warmth sucking granite.
Credit: Brian Martin


This is not the most comfy pad. That being said, everything in life is about compromise, right? The compromise for having a slightly narrow bottom half and the somewhat slippery fabric is that the XTherm provides excellent warmth to weight in a tiny package. If you don't mind the extra weight, we imagine the rectangular version is worthy as well, though we didn't test that version.

While it doesn't affect the physical comfort we feel when using the pad, it's worth noting just how crinkly this pad is. We generally fell asleep quickly while using the XTherm; however, it's undeniable that those sensitive to rustling/crinkling sounds might be frustrated with the noise generated by movement on the XTherm. Think bacon sizzling in the pan, and you'll have a general idea of the sound and volume level of the crackling sound.

therm-a-rest neoair xtherm sleeping pad review - thick, mostly bounce-free, warm; the xtherm is quite comfortable...
Thick, mostly bounce-free, warm; the XTherm is quite comfortable especially considering the low weight. Larger individuals might want to consider the wider (25 inch) version as this one is pretty narrow at 20 inches.
Credit: Brian Martin

Now for the positive comfort attributes. The two and a half-inch thick pad utilized horizontal baffles, which proved to be plenty thick and not excessively bouncy. We never felt debris underneath and couldn't push through to the ground unless we were kneeling on the pad. Side sleepers will have absolutely no trouble with hips digging into the earth even if you deflate the pad just a tad for optimal comfort.

therm-a-rest neoair xtherm sleeping pad review - cold desert night on hard ground? not a problem for the xtherm. the...
Cold desert night on hard ground? Not a problem for the XTherm. The 2.5inch horizontal baffles were more than enough to keep us comfortable even on rocky, uneven ground.
Credit: brian martin

Weight and Packed Size

To further praise the improvements of the newest XTherm, our previous version, which was the same size, weighed in at 19.5 ounces on our scale, with pump sack included. The new version, with an improved valve system plus pump sack, weighed in at 18.2 ounces.

Comparisons are kinda our thing. When comparing weight and packed size of the XTherm to other four-season pads, none even come close. This thing even beats out most three-season pads in the weight/packed size department.

therm-a-rest neoair xtherm sleeping pad review - pad, pumpsack, repair patches, and stuff sack all-together weighed...
Pad, pumpsack, repair patches, and stuff sack all-together weighed in at 18.2oz which is actually lighter than the past version of this pad. The thinner under fabric definitely slimmed this bad boy down.
Credit: brian martin

The XTherm packs down into a pleasantly small roll with an amply sized stuff sack, able to accommodate both pump sack and pad easily even when wearing gloves, which is a huge plus. There's nothing more frustrating than having outdoor equipment designed for four seasons that require you to take off your gloves just to pack it up.


After testing the NeoAir XTherm in a wide range of conditions, we feel comfortable saying that it's one of the warmest sleeping pads we tested. The Thermacapture reflective heat technology does, in fact, reflect heat efficiently.

The NeoAir XTherm stands alone in its insulation technology. Most insulated pads, even the really warm ones, utilize synthetic fiber insulation on the inside of the pad, which is effective but results in a bulky and often heavy pad. The reflective metalized coating inside the pad is effective at reflecting heat, but more importantly, is incredibly light and able to collapse when the pad is deflated.

therm-a-rest neoair xtherm sleeping pad review - the 2011 version of the therm-a-rest neoair xtherm below northern...
The 2011 version of the Therm-a-Rest NeoAir XTherm below northern Maine's Mt. Katahdin. Tom is 6'3" and slept on snow with the XTherm at -10 degrees F.
Credit: Max Neale

Our testers have crashed on this pad all over the lower 48 and up on Denali in Alaska. The warmth of this pad, coupled with its unique packability and light weight, has made it our measuring stick for all other pads.

Ease of Inflation

As long as we can remember, Therm-a-Rest pads were equipped with the same valve system, and like the annoying drunk uncle at Thanksgiving, we all just learned to accept that it was always going to be there. Not only has the XTherm valve been updated, but the new valve is excellent, and a departure from the multitude of incredibly similar valves now found on the market.

In addition to the new air capturing valve, the included pump sack locks onto the system effortlessly, whereas the previous version required the user to maneuver a rubber ring around the valve with considerable effort. While the new version has much higher airflow and is much easier to use, it is prone to popping off the valve if too much pressure is applied. While this can be frustrating, it's likely in place to avoid popping and damaging the pad by overinflation.

therm-a-rest neoair xtherm sleeping pad review - the pump sack would occasionally pop off the valve until we...
The pump sack would occasionally pop off the valve until we developed a sense of how quickly we could pump it up. That little frustration aside, the overall airflow and no-backflow have been improved so much, it's mind-blowing.
Credit: brian martin

The culprit causing all of this improved airflow speeding up inflation and deflation is the new winglock valve. It looks remarkably similar to the past valve. Honestly, it's refreshing to see a new system that isn't a carbon copy of what most other brands are doing.

therm-a-rest neoair xtherm sleeping pad review - the winglock is a chunkier and more substantial valve than previous...
The winglock is a chunkier and more substantial valve than previous valves used by Therm-a-rest. Additionally, it allows for significantly faster inflation and deflation as well as an automatically sealing valve that doesn't require oral jiujitsu to keep sealed
Credit: brian martin


We've spent a significant amount of time using the XTherm as well as multiple previous generations of this pad. We have yet to have any issues with durability unless we deliberately threw down on the cactus infested desert sand. It's worth noting that the new winglock valve feels significantly more substantial and durable in hand than the previous valve system. However, we didn't experience any durability issues with either type.

The biggest change in durability is the shift to a thinner 30D fabric on the underside of the XTherm. Unquestionably, this thinner fabric will be a bit less durable over time; however, with an included patch kit and a proven track record of durability (with other pads utilizing a 30D under), we wouldn't hesitate to take this pad deep into the backcountry.

therm-a-rest neoair xtherm sleeping pad review - to shave some of the weight gained by the added insulation and...
To shave some of the weight gained by the added insulation and winglock in 2020 the Xtherm has been fitted with 30D under fabric instead of the past 70D. This likely detracts from overall durability but even after thrashing our 2020 version, we have yet to damage it...
Credit: Brian Martin


The XTherm is pretty dang expensive. In all actuality, it retails for almost double many of the other pads in this review. It's also the highest performing and most versatile pad in this review. If you're in the market for a pad that dishes out warmth, comfort, lightweight packability, and excellent ease of inflation/deflation at an unparalleled rate, the XTherm is 100% a great value.


Year after year, the NeoAir XTherm takes our Editors' Choice Award. This year was no different. The lightweight, small packed size, superior warmth, and decent comfort combine to make a sleeping pad that has yet to be bested. We have absolutely no hesitation in suggesting this pad to our friends, and it is typically our go-to suggestion for nearly any application.

therm-a-rest neoair xtherm sleeping pad review - it was harder than ever to pick our editors choice winner this year...
It was harder than ever to pick our Editors Choice winner this year. The XTherm and XLite were both absolutely fantastic. Ultimately, the XTherm offers all the same rock-solid qualities, with a tad more weight and way more warmth.
Credit: brian martin

Brian Martin