To enhance the comfort and versatility of thesemattresses even further,similar to the current XThermMAX, for 2023, both the XLite and XTherm NXT willbe available in the existing mummy shape andamorespacious rectangularshape, perfect forthoseseekinga little extra comfort and spacewhile they sleep. The unrivalled Triangular Core Matrix offers the best warmth-to-weight ratio of any air sleeping pad construction. Thermarest NeoAir XLite and XTherm Review - “Increased the comfort and thermal qualities making this the perfect option for lightweight wild-camping” MAX Coverage: Rectangular shape with extra width provides added coverage and enhanced comfort at camp (XTherm NXT MAX only) Durable: 70D Nylon fabric bottom resists punctures and delivers a pad that can be confidently and extensively used in the rugged hills and mountains.

From 2020, there is a new industry standard for measuring the R-value (level of insulation) of sleeping mats – ASTM F3340-18. This new standard is the sleeping mat equivalent to the EN rating for sleeping bags. The mat has an incredibly hight R-value of 7.3, this is a mat that can be used in arctic conditions, and weighs only 599 grams, truly impressive. The Thermarest NeoAir Xtherm does a terrific job of retaining heat. Pretty much all of the mainstream gear testers have showered the Xtherm with rewards for the duration of its life. Overall, reviewers have given the Xtherm a 4.7 star rating.

Our Verdict

This mat has a R-Value of 5.7 which in real terms relates to true 4 season performance, so it is perfectly suitable for use on snow or frozen ground. R-Values are an international standard of insulation and (in simple terms) indicate the materials ability to reduce heat flow through conduction, radiation or convection. Therefore the higher the R-Value, the lower the heat transfer and the greater the insulation properties of the material. Please note that inflatables such as sleeping mats are not considered as faulty if they become punctured during use and are not covered by the manufacturer's warranty in this event.

Best Warmth-to-Weight Ratio Ever: Refined Triangular Core Matrix construction and ThermaCapture technology deliver a cold-conquering 7. R-Value while cutting over 2 oz (57 g) in weight from the previous model.The Xlite has always been seen as an incredibly efficient sleeping pad at 12 ounces (R) with a 3.2 R-Value. But the Thermarest Neoair Xtherm has taken the evolution of sleeping pads to the next step. weighing just 15 ounces and boasting an impressive 6.9 R-Value. Thermarest Sleeping Pad Comfort: Any customer information held on our computers complies with the rules and laws contained within the Data Protection Act 2018. Important things to take into consideration: Any time you’re sleeping on an inflatable air mattress, it’s really important to adjust the air volume to adapt to the expected air temperature. Meaning that when it’s cold outside, the air in your mattress will compress. And when it’s warm, it’ll inflate.

And Thermarest is known for having really terrific customer service, so at the very least, they’ll probably fix whatever problems you might encounter. I had the opportunity to test the NeoAir Xtherm near the Great Sand Dune National Park in Colorado. I was a little bit worried that I’d turn into an ice cube overnight while camping near the Sand Dunes. It wouldn’t be the first time. But it actually took no time at all for the Xtherm to insulate my underside despite some pretty chilly temps. The NeoAir XTherm NXT is available in sizes:Regular, Regular Wide, Large, MAX Regular Wide and MAX Large

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An important part of this Neo Air Xtherm review is to actually consider your personal needs rather than jsut the specs of the prouct. Things to consider: Most of the time, I slept alright on the Z-lite. But my last couple weeks brought a bunch of snow. And I pushed my sleep system to its breaking point.When the ground froze, I could feel the temperature through my sleeping pad. I probably should have retired the Z-lite Sol after the Appalachian Trail but I like pushing gear to its limit. Sleeping Pad R-Value: The mat has an incredibly hight R-value of 7.3, this is a mat that can be used in arctic conditions, and weighs only 694 grams, truly impressive. While the R-value of the XTherm NXT increased from 6.9 to 7.3, again, that’s not a good enough reason in my opinion to upgrade to the XTherm NXT if you already own an older XTherm. Anything over an R-value of 6 is already going to be overkill in terms of insulation performance in winter in the lower 48. To be honest, I suspect the R-value increase in the XTherm NXT is tied to the increase in pad height, rather than being a deliberate improvement. The increase in air volume probably makes the pad warmer. Quieter I have accumulate several REI gift cards and thinking I’ll splurge on a nice insulated pad, regular wide. The cost between Xlite and Xtherm is so minimal, I would hate to get the Xlite and wish I had the Xtherm, where I don’t like I’d mind the extra 4 oz much.