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This Therm-a-Rest NeoAir UberLite review presents our performance assessment of the lightest full-sized air-filled sleeping pad on the market.

The Therm-a-Rest NeoAir UberLite is an 8.8-oz inflatable air mattress (i.e., size "regular" - 20 in wide x 72 in long). Users of the Therm-a-Rest XLite and XTherm will recognize the UberLite’s shape and basic design. The UberLite is a little over three ounces lighter than the XLite. It also packs down smaller and sleeps more quietly. The tradeoff? Warmth.

Here's how the three mummy-shaped pads in the Therm-a-Rest NeoAir line compare:

neoair pad comparison
Weight8.8 oz12.0 oz15.0 oz
Packed Size6.0 in x 3.5 in9.0 x 4.0 in9.0 x 4.0 in
Top Fabric15 denier ripstop nylon30 denier ripstop HT nylon30 denier ripstop HT nylon
Bottom Fabric15 denier nylon30 denier ripstop HT nylon70 denier nylon

All specs are for a regular-sized pad (20 in width x 72 in length x 2.5 in thickness). The UberLite is also available in short and long sizes.

In addition to the obvious differences in weight, warmth (R-value), and packed volume, you can see that the Therm-a-Rest NeoAir UberLite is made with lighter fabrics. Therm-a-Rest claims in particular that the UberLite's top fabric is quieter than the fabrics used in the other two pads, a performance feature we'll look at in this review.

Watch Ryan Jordan's video about how he uses the Therm-a-Rest NeoAir UberLite for winter camping, as well as a summary of the findings presented in this review:


  • Horizontal Baffles
  • Triangular Core Matrix construction
  • Quiet top fabric
  • Compresses to the size of a beer can
  • Stuff sack and repair kit included
  • Standard Therm-a-Rest valve system
  • MSRP: $179.95 (Pre-order/Purchase from REI)


  • Weight (regular): 8.8 oz (249 g)
  • Measured Weight (mattress only): 7.9 oz (224 g)
  • Measured weight including stuff sack and repair kit: 8.3 oz (235 g)
  • Width (regular): 20 in (50 cm)
  • Length (regular): 72 in (183 cm)
  • Thickness: 2.5 in (6.4 cm)
  • R-Value: 2.0
  • Packed Dimension: (out of the box): 6 in x 3.5 in (15.2 cm x 8.9 cm)
  • Top fabric type: 15 denier ripstop nylon
  • Bottom fabric type: 15 denier nylon

Review Context

IMG 7578
The UberLite offers 2.5 inches of cushioning thickness at only 8.8 oz.

Why choose an inflatable air mattress in the first place?

Closed cell foam pads (generally) insulate better (higher R:thickness ratio), are tough, have multiple uses (e.g., stove windshield, lounge pad on abrasive ground, internal pack frame), are significantly cheaper, and weigh about the same.

For instance, check out the specs for the Therm-a-Rest RidgeRest SOLite. This pad gets you more utility at virtually the same weight as the current gold standard in inflatable mattresses, the Therm-a-Rest NeoAir XLite - for a fraction of the cost.

NeoAir XLiteRidgeRest SOLite
Weight12.0 oz14.0 oz
Packed Size9.0 x 4.0 in20.0 x 8.0 in
Top Fabric30 denier ripstop HT nyloncross-linked polyethylene closed cell foam
Bottom Fabric30 denier ripstop HT nyloncross-linked polyethylene closed cell foam

The answer is one word: comfort.

Those who can sleep well on a textured and relatively thick closed cell foam pad are a special breed. Hikers that can wake up feeling rested after a night on a very thin foam pad are even rarer. If your dedication to ultralight backpacking means you are willing to suffer sleepless nights in the pursuit of ounce shaving, you are one tough cookie. But I would argue that sleep deprivation will eventually catch up with you and degrade your hiking performance regardless of how light your pack is. The longer your hike, the more this is likely to come into play.

It is true that most bodies and minds will adapt (somewhat) to sleeping on a thin closed cell foam pad. I thru-hiked the Appalachian Trail and Colorado Trail using a 5/8" closed cell foam pad, and eventually got (sort of) used to sleeping on it. But I never got what I would consider an excellent night’s sleep, and suffered extensively from numb shoulders and achy hips.

So while R-Value, durability, and price are all important considerations for an inflatable mattress, comfort is king, especially if you are the type of person where comfort on a closed cell foam pad is elusive. Or, should I say, the comfort-to-weight-ratio is king. It is the chief factor that separates inflatable air mattresses from other types of pads.

Of course, comfort is subjective, particularly where sleep is involved. If it were easy to objectively quantify comfort we’d all be sleeping like kings every night in the backcountry. I don’t have to tell you this isn’t the case! So you’ll see words like feels and seems pop up from time to time in this review, particularly where comfort is concerned. I can only offer you my subjective opinion here, and provide you with anecdotal data that will allow you to extrapolate what your own experience might be. In all other performance metrics (weight, durability, etc.) I remain as objective as possible.

Description of Field Testing

IMG 7576
Blowing up the Therm-a-Rest NeoAir UberLite in Wyoming. I could achieve maximum pressure with 15 to 17 breaths.

Therm-a-Rest recommends the UberLite for summer use. Production samples of the mattress were not available until the late summer of 2018, so I was not able to test the UberLite in peak summer conditions. In some ways, that limitation works out nicely. I think that the average user of this mattress will not contain herself to summer conditions but will instead be sleeping on the UberLite across three seasons, depending on conditions. Rare is the backpacker that can afford to own a separate mattress purely for summer temperatures.

I tested the UberLite across the late summer and fall, in three mountain ranges, and at elevations ranging from 5,000 ft to 11,000 ft.

My first wilderness test was a two night trip in the Wind River Range in Wyoming in late summer. Both campsites were 10,000 ft to 11,000 ft. Conditions at night were windy with light-to-heavy rain and temperatures dropping just below freezing. Daytime hikes consisted of steep climbs and high elevation peak bagging, with correspondingly low mileage.

My second test was a six-night off-trail trek through Montana’s Absaroka-Beartooth Wilderness in early fall (story about that trek here). Campsite elevations ranged from 6,000 ft to 10,000 ft. Evening temperatures ranged from the low 20s (deg F) to mid 30s (deg F) with occasional high winds and light rain. Daytime hiking consisted of steep ups and downs over high passes and through dense brush. Long hiking days (up to 12 hours a day) with up to several thousand feet of elevation gain, combined with inclement weather and chilly nights provided a good backdrop for testing an ultralight sleep system and evaluate its ability to help me recover each day.

Finally, I tested the UberLite on several late fall one and two-night excursions in California's Eastern Sierra. Overnight temperatures fell to the 20s and 10s (deg F), with occasional light to moderate snow. Daytime hiking was characterized by high-mileage days through shallow snow.

I’m 5 ft 6 in (168 cm) tall, weigh 160 lb (73 kg), and used a regular sized mattress.

Member's Only Content

Login as a Premium or Unlimited Member to read the comprehensive Performance Assessment and Author Commentary sections of this review:

  • Performance Assessment - Comfort, Weight, Compressibility, Durability, Usability, and Finish Quality
  • Product Strengths and Limitations
  • Compared To - Therm-a-Rest XLite, Sea to Summit Ultralight Mat, Big Agnes Insulated AXL, REI Flash, NEMO Astro Lite, Klymit Inertia X-Frame, Expeditor Airmat HL
  • Commentary

Member's only version is 4,400 words and includes 13 photographs.

Review Rating

rsz bpl recommended


The Therm-a-Rest NeoAir UberLite is currently the lightest and most packable air-filled sleeping pad on the market that provides at least 2.0 inches of thickness, and a standard 20x72 footprint. In addition, it features outstanding manufacturing quality and quiet fabrics.

The UberLite will allow serious ultralighters to shave some ounces while still getting a good night’s sleep. The UberLite will appeal to existing NeoAir XLite and XTherm users who are seeking a quieter sleep and a lighter pack, or Klymit Inertia X-Frame users who are tired of suffering cold nights just to carry a sleeping pad in this weight class. In addition, the UberLite makes sense for ultralight backpackers who have previously been committed to closed cell foam pads, and want to save more weight and increase their sleeping comfort. If long-term users report the kind of ruggedness found in other Therm-a-Rest inflatable mattresses, we may consider bumping this rating to a Highly Recommended Rating.

Where to Buy

Related Content

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