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Sea To Summit
Ether Light XR Pro Insulated Sleeping Mat

4.666666666666667 out of 5 stars
3 Reviews
$219.00 - $289.00

Style & Size:

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Ether Light XR Pro Insulated Sleeping Mat offers ultralight warmth with Thermal Core insulation for extreme conditions

What Our Gearhead® Experts Are Saying:


"This mat is a game-changer for cold-weather adventures. The Thermal Core insulation keeps me warm even in freezing temps, and the Air Sprung Cells provide incredible comfort without the bulk. At just 4 inches thick, it feels like sleeping on a cloud, and it packs down surprisingly small for how warm it is. Whether mountaineering or winter camping, this is my go-to."


When pushing into extreme conditions, we need a sleeping pad that won’t let us down. The Ether Light XR Pro Insulated Sleeping Mat delivers next-level warmth and comfort while staying ultralight for high-output adventures.


With an impressive 7.5 R-value, this mat is built to insulate against frigid ground temperatures, keeping us warm even in deep winter. The multi-layer Thermal Core insulation reflects body heat and minimizes air movement, ensuring maximum efficiency without extra weight. Air Sprung Cells provide plush support, mimicking the feel of a real mattress for restful nights. At 4 inches thick, it offers luxurious cushioning while remaining incredibly packable. From alpine expeditions to winter backcountry treks, this pad is designed for those who refuse to compromise on warmth and comfort.


Details

  • Ultralight and warm sleeping mat for winter camping and alpine expeditions
  • Multi-layer Thermal Core insulation provides an exceptional 7.5 R-value
  • Air Sprung Cells deliver superior stability and comfort on rough terrain
  • 4-inch thickness offers premium cushioning for a restful sleep
  • XPress valve allows for fast inflation and deflation with minimal effort
  • Lightweight, packable design makes it ideal for high-performance adventures
  • Item #STSZ0AR
Material
[face fabric] TPU, [insulation] Thermal Core (reflective film)
Style
air pad
Shape
mummy, rectangular
Thickness
4in
R-Value
7.5
Pump
stuff sack
Stuff Sack
included
Dimensions
[small] 66 x 21.6in, [regular] 72 x 21.6in, [large] 78 x 25.2in, [rectangular reg. wide] 72 x 25.2in, [rectangular large] 79 x 25.2in
Claimed Weight
[small] 1lb 2.1oz, [regular] 1lb 3.4oz, [large] 1lb 8.7oz, [rectangular reg. wide] 1lb 8.9oz, [rectangular large] 1lb 11.5oz
Activity
weekend camping, backpacking, winter camping
Manufacturer Warranty
lifetime

What do you think about this product?

Overall Rating

4.5 based on 3 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 2 reviews

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4 out of 5 stars

April 14, 2025

Buy it, but leave the stuff sack home

[This review was collected as part of a promotion.] Excellent pad, great warmth to weight ratio, and packs small for its loft. The only issue not making it a 5 star is the stuff sack/blow-up bag. It is very awkward and difficult to use compared to the gold standard (rhymes with noozzle). This inflation bag doesn't inflate easily, and is too small in circumference for the needed amount of air. It takes 5 full bags to inflate the mat as compared to 3 of the "other" bag. I would buy this pad and leave the stuff sack/ inflator bag at home

Tad E.
Sea to Summit

Originally reviewed on Sea to Summit

5 out of 5 stars

April 14, 2025

Fantastic Sleeping Pad!!!

[This review was collected as part of a promotion.] What a bargain. . . warm (R-Value of 7. 4), quiet, comfortable, well made, durable, and relatively light considering it's R Value. I highly recommend this pad for cold nights/conditions. Be sure to maximize its loft for best comfort and warmth. . . the air bag/stuff sack works great to blowing it up. Bravo Sea to Summit!!!

user image
Carmen W.
Sea to Summit

Originally reviewed on Sea to Summit

5 out of 5 stars

April 8, 2025

Light and small

[This review was collected as part of a promotion.] Got this pad under warranty to replace an older model (thanks S2S!) and it's been even better than the one before. Lightweight, easy to pack, and super warm.

Evert V.
Sea to Summit

Originally reviewed on Sea to Summit