Sea to Summit Ether Light XT Insulated Air Sleeping Mat

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Size: Regular
Sale price£152.50 Regular price£179.50


The Sea to Summit Ether Light XT Insulated Air Sleeping Mat is four inches thick, bringing Air Sprung Cell comfort to the realm of thicker air sleeping pads. Using two types of insulation for three-season warmth, this sleeping pad is lightweight and quieter than a traditional air pad. The XT Air-Sprung Cells are constructed using loops of strong, flexible material to provide a plush sleeping experience. The uprated 30D/40D face fabric is quiet and durable, and the lamination technology continues Sea to Summit’s class-leading reliability.


  • 3.2 R-Value is sufficient for late spring to early fall use.
  • At four inches thick, Ether Light XT Air Sprung Cells provides a plush sleeping experience.
  • Exkin Platinum® insulation reflects your radiant heat back to you, Thermolite® insulation prevents convective heat loss.
  • Lighter, quieter and durable 30D/40D face fabric with Sea to Summit’s liquid-extruded lamination is extremely reliable.
  • Quick and easy inflation, deflation and adjustment is made possible by our multi-function valve and supplied Airstream Pump/stuff sack.
  • Anti-microbial treatment added to the TPU lamination formula prevents internal mold growth.
  • PillowLock system prevents your Sea to Summit Aeros Pillow from slipping.
  • Comes with a stuff sack which doubles as a pump, a repair kit with six self-adhesive patches and a spare valve insert.


Best Use: 

  • Backpacking, bike touring, paddle touring, camping


  • Regular: 55 x 183 cm / 21.5 x 72 in 
  • Large: 64 x 198 cm / 25 x 78 in
  • Regular Rectangle Wide: 64 x 183 cm / 25 x 72 in


    • Regular: 490g 
    • Large: 625g
    • Regular Rectangle Wide: 630g

      Base Camp Food are an official UK Retailer for Sea to Summit. 

      To view our complete Sea to Summit range, click here.

      Customer Reviews

      Based on 1 review
      Terry Tabram
      Very comfortable mat

      I’m quite short and fat,and I move about like a net full of eels
      I’ve been camping for best part of 50 years
      I used to be able to sleep on concrete when I was young, but now I’m older I need comfort
      I bought this mat on the XL size due to how I sleep now
      Really comfy and space to wiggle about
      I’m a side sleeper and this mat was the perfect balance for me
      Wanted a mat with diagonal cores rather than straight lines as I struggle with my restless movements through the night
      Great mat that gives me a decent nights sleep under the stars and a bit of canvas

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