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More warmth per gram than any other air mattress in the world.
The XTherm™ air mattress delivers the greatest warmth-to-weight ratio available in any air mattress by far, with a softer, textured no-slip fabric for better next-to-skin comfort and a quieter rest. Multiple, reflective ThermaCapture™ layers give the XTherm™ air mattress true four-season warmth without the weight or bulk usually found in a winter-worthy mattress. Stuff sack and repair kit included.
The XTherm™ air mattress delivers the greatest warmth-to-weight ratio available in any air mattress by far, with a softer, textured no-slip fabric for better next-to-skin comfort and a quieter rest. Multiple, reflective ThermaCapture™ layers give the XTherm™ air mattress true four-season warmth without the weight or bulk usually found in a winter-worthy mattress. Stuff sack and repair kit included.
- Unmatched Warmth-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.
- Excellent Comfort: 2.5 in (6 cm)-thickness, soft-touch fabrics 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.
Easy Returns
Need to return an item? Take up to a full year!
Return Policy
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At Ascent Outdoors we’re committed to your satisfaction as a customer. We hope to work with you to find the right outdoor products for your adventures!
Online and In-Store Return/Exchange Policy:
- New and unused items in original packaging with tags still attached may be returned within 365 days to receive a full refund, exchange, or store credit. Exceptions apply: See the Garmin policy below.
- Used items may be exchanged for store credit within 30 days of purchase. Shipping fees apply for online orders. Exclusions to Garmin and rock climbing hard and soft goods. If you’re not sure please email us before purchase.
- For your safety, rock equipment including but not limited to rock climbing hardware, harnesses, slings, and ropes cannot be returned at any time. Helmets and shoes may be returned unworn, with tags and in original packaging.
- Please note we charge both sides shipping fees for returns or exchanges for online orders.
Garmin Return/Exchange Policy:
- Please note that Garmin Devices and Watches must be unopened and in their original packaging with tags attached.
- They may be returned within 90 days to receive a refund, exchange, or store credit
- Once taken out from the box or activated - devices/watches cannot be returned or exchanged.
- For any manufacturing defects with your Garmin Device, we can connect you with Garmin Customer Support to facilitate the warranty process and to help troubleshoot the issue.
Lowest Price Guarantee
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Price Match Policy
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