NeoAir® XTherm

The XTherm air mattress delivers, by far, the greatest warmth-to-weight ratio available in any air mattress, allowing you to go lighter than ever in winter conditions. Patent-pending ThermaCapture™ Radiant Heat Technology gives the XTherm™ air mattress true four-season warmth without the weight or bulk usually found in a winter-worthy mattress. The result is a mattress that weighs less than a pound, takes up about the same space as your water bottle, and provides serious comfort in extremely cold conditions. Pump sack and repair kit included.

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  • Unmatched Warm-to-Weight: Patent-pending, reflective ThermaCapture™ technology traps radiant heat while Triangular Core Matrix™ construction minimizes convective heat loss–all without the bulk, weight or durability issues of down and synthetic fills.
  • Comfortable: 2.5” (6 cm)-thickness and baffled internal structure provide unrivaled stability and support.
  • Highly Packable: Free of bulky, conventional insulating materials, the XTherm™ mattress packs to the size of a one-liter water bottle.
  • Ultralight: Advanced materials and a tapered design reduce weight without compromising warmth.
  • Therm-a-Rest NeoAir ThermaCapture technologyPatent-pending reflective layers inside NeoAir™ mattresses reflect radiant heat back to your body, amplifying warmth without the bulk, weight or durability issues of down and synthetic fills.
  • Therm-a-Rest NeoAir Triangle Core Matrix technologyThis patent-pending construction combines two layers of triangular baffles to create over a hundred insulating cells, slowing convective heat loss and delivering unrivaled stability for maximum comfort.

Therm-a-Rest NeoAir XTherm mattress R-value chart

View specs in printer-friendly format
ColorReflex GrayReflex GrayReflex GrayReflex Gray
Weight11 oz / 310 g14 oz / 410 g15 oz / 430 g1 lbs 4 oz / 570 g
Width20 in / 51 cm20 in / 51 cm20 in / 51 cm25 in / 63 cm
Length47 in / 119 cm66 in / 168 cm72 in / 183 cm77 in / 196 cm
Thickness2.5 in / 6.3 cm2.5 in / 6.3 cm2.5 in / 6.3 cm2.5 in / 6.3 cm
Packed dimension9 x 3.3 / 23x 99 x 4.0 / 23 x 109 x 4.0 / 23 x 1011 x 4.5 / 28 x 11
Top fabric type30d High Tenacity Nylon30d High Tenacity Nylon30d High Tenacity Nylon30d High Tenacity Nylon
Bottom fabric type70d Nylon Soft Grip70d Nylon Soft Grip70d Nylon Soft Grip70d Nylon Soft Grip
Country of OriginMade in Seattle, USAMade in Seattle, USAMade in Seattle, USAMade in Seattle, USA
  • Winner of the a GOLD OutDoor INDUSTRY AWARD 2011, the NeoAir XTherm mattress was selected for its “ultra-effective” warmth and for being “extremely lightweight and beautifully designed at the same time.” The only mattress to chosen for a GOLD award from a pool of 301 product submissions, the jury called it “Absolutely perfect!”

  • Winner of a 2013 Editor's Choice award from the German magazine Outdoor, the NeoAir XTherm mattress was recognized for it's light weight, packability and perfect insulation for 4-season warmth.

NeoAir® XTherm Instructions

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