As if the NeoAir XLite weren’t already pretty darn warm, Therm-a-Rest also offers the NeoAir XTherm, a true all-season inflatable sleeping pad that blows all other pads out of the water in warmth-to-weight ratio. The R-value of 7.3 means this pad can handle truly extreme winter conditions, if that’s your thing. Its relatively light weight (still under one pound) means you won’t mind carrying this pad in warmer weather either. The UberLite still crinkles like the XLite and original NeoAir but notably less so. The face fabric is slightly softer than these other mats and a bit slippier on a silnylon tent floor, but once you're on it there's no chance of it moving around the tent.

If you’re thinking of using your sleeping pad in relatively colder weathers than, in that case, XLite would be the better option for you.

The NeoAir UberLight shares its mummy shape with the NeoAir XLite and XTherm. Some people feel the regular 20″ width is too narrow, leaving them feeling tippy or with their arms hanging off the side. (It doesn’t bother me, but I’m fairly narrow myself.) For these folks Therm-a-Rest offers wide and large sizes with 5 extra inches of width, but these aren’t available in the short torso length. Choosing between the XTherm versus XLite for chilly shoulder season weather? Choose the XTherm if you really value warmth and comfort more than weight. Choose the XLite otherwise. Big On Comfort: 6.4cm (2.5 inches) of cushion provide luxurious rest during your fast and light activities. The NeoAir UberLite is available in three different lengths and widths: a 47 x 20″ small size weighing just 6 oz, a 72 x 20″ regular size weighing 8.8 oz, and a 77 x 25″ long and wide size that weighs 12 ounces. Depending on your preferences and goals, all three sizes are pretty attractive in terms of weight and comfort. Note: the size regular pad we tested was 0.2 oz over its spec weight (some people care about that). Size

Therm-a-Rest have used an amazingly lightweight 15D nylon material for the outer, which is still incredibly durable, to keep the weight of this sleeping pad to a minimum. They have coupled this with their proven two-layer Triangular core matrix construction, the same as the other NeoAir mats, to minimise convection heat loss to be able to achieve the warmest most efficient pad in its class! It has comparable comfort to the NeoAir XLite and XTherm but at a lower weight. As a woman, and a side sleeper, my hip sunk into the UberLite without hitting the cold ground. The customer base are already calling for a wider, shorter version of the UberLite but this size was perfect for me. I noted it was a lot shinier than my Therm-a-Rest NeoAir XTherm so had some concerns I’d slide around on it but these fears were unfounded. On the nights I’ve tested it, I’ve stayed put all night and slept really well. How would I compare the UberLite to other popular sleeping pads? Therm-a-Rest UberLite vs. Therm-a-Rest XLite NeoAir XTherm: Warm all-season pad suitable for winter adventures with nights around 10 degrees F or below. Still impressively light with minimal weight penalty relative to the XLite. Get the XTherm if your adventures don’t stop when it’s snowing, or if you sleep cold and often adventure in chilly spring or fall conditions and want a little extra warmth.Thermarest’s proprietary construction provides the critical warmth needed for your lightweight adventure. The UberLite is smaller than the XLite (left) and Big Agnes AXL (right), all size Regular. But the difference is small, and I’d say that other factors should drive your buying decision. Leave a comment!

Unlike the XLite, mylar film is not used in the construction of the UberLite. This compromises its warmth, but makes it less crinkly. Sleeping on the XLite has been rightfully compared to sleeping on a bag of potato chips. If you only do summer camping and if you think you would be careful to your sleeping pad, don’t hesitate, go with the Uberlite (I said “be careful” to your sleeping pad because, Uberlite is made of low denier fabric, and it’s not exactly the best option in the durability department). Warmth / season is the biggest functional difference between these three pads. Sleeping pad warmth is designated by the R-value, a measure of how well the pad prevents your body’s heat from transferring to the colder ground. A tapered mummy shape is classic for ultralight pads. These taper from the hips down and cut on weight. More on sleeping pad shapes in our Guide. 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.

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If you’re not familiar with the R-Value I can say that this insulation can keep you warm down to roughly 40 °F (I will get into details below at the detailed comparison section). The Therm-a-Rest NeoAir UberLite is the lightest weight inflatable pad on the market. A bold statement, to be sure. Ready for those ultralight, ultra-fast adventures you’ve spent all winter dreaming of, this pad excels in hot environments, and hot environments only. In a hurry? This section sums up my recommendations on choosing between the XLite vs. XTherm vs. UberLite. I’ll go into more detail on each down below. This is unfortunately where I have some negative things to say about the UberLite. Where the XLite uses stronger 30D fabric top and bottom, the UberLite uses 15D fabric, which seems not quite up to the challenge. Tip: If you need to patch your UberLite sleeping pad — and you probably will — I find GearAid Tenacious Tape stays on better than the included patch kit. I’ve had to patch my UberLite twice in six nights of use. Lesson learned, spread weight out evenly and carefully!

Therm-a-Rest also offers the NeoAir UberLite in a Large, which has a 25-inch width and 77-inch length, weighing in at 12 ounces. This is a larger, more comfy pad, but weighs significantly more. Therm-a-Rest offers the NeoAir UberLite in a Small, which weighs six ounces, has a 20-inch width, and 47-inch legnth — basically half a pad for ultra-ultra-lighters (or children). THERMAREST & MSR: Sale! 30% Off all MSR Tents and Thermarest Sleeping Bags including the award-winning Parsec 0! Featherweight: Weighing just north of half a pound, the UberLite sets a new standard for ultra lightweight comfort.

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Therm-a-Rest offers the UberLite in three sizes. We tested the Regular, and all these specs are for the Regular. The Small is half-size, and the Large has a 25-inch width and 77-inch length. The UberLite is the newest addition to the NeoAir lineup, and the lightest. There isn’t another pad in existence that can match its blend of featherlight weight, tiny size, decent comfort, and 3-season-ish warmth. The only real downside, in my experience, is the UberLite’s difficulty with reliably holding air. Hopefully Therm-a-Rest improves this in future versions, because this pad is otherwise excellent. This matt has an R-Value of 2.3 which in real terms means that this matt is best suited to warmer weather trips and adventures.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.