Sea To Summit

Sea To Summit Ether Light XT Insulated Sleeping Mat

$172 $215

Sea To Summit Ether Light XT Insulated Sleeping Mat

Redefining lightweight cold-climate sleeping comfort, this mat combines a lightweight 30/40D Nylon fabric, Exkin Platinum® and THERMOLITE® insulation with a loop baffle Air Sprung Cell™ construction to create a 10cm thick mat with an incredibly low weight. Larger air pockets are created by using many looped TPU baffles which connect the top and bottom fabric layers with our Air Sprung Cell™ dot weld pattern. The looped baffles allow the top and bottom layers to be positioned further apart creating larger pockets of air when inflated that require less fabric overall. Perfect for side sleepers, the extra height of this mat lets hips sink deeper into it without touching the ground.

Sea To Summit Ether Light XT Insulated Sleeping Mat Features

  • Includes an Airstream™ Pump that is integrated into the stuff sack for quick and easy inflation
  • Extra Thick (XT) loop baffle Air Sprung Cells™
  • Lightweight, quiet and grippy 30/40D Nylon fabric, field repairable with included self-adhesive patches
  • Exkin Platinum® and THERMOLITE® for insulation
  • Air Sprung Cells™ for a more comfortable sleep
  • Ultra-Fresh® anti-microbial treatment to the TPU formula to prevent internal mould growth
  • Multi-functional, high flow-rate valve
  • PillowLock™ attaches your Aeros™ pillow to your mat, holding it in place for a slip-free sleep

Sea To Summit Ether Light XT Insulated Sleeping Mat Specifications


  • R Value - 3.2
  • Weight - 425g
  • Dimensions - 183 X 55 X 10cm
  • Rolled size - 12x24cm


  • R Value - 3.2
  • Weight - 560g
  • Dimensions -  198 X 64 X 10cm
  • Rolled size - 13x28cm

Rectangular Large

  • R Value - 3.2
  • Weight - 690g
  • Dimensions -  201  X 64 X 10cm
  • Rolled size - 13x28cm

Customer Reviews

Based on 6 reviews
Soraya Rustom Treble
Sea to summit mat

Great mat! Super comfy, lightweight and packs super small. It is a little bit noisy at night because of the material though, but overall a really good sleep on it :)

Sam M
Sea To Summit Ether Light XT Insulated Sleeping Mat

Sleeping mat is perfect, lightweight, spacious and easy to inflate. The Past Outdoors crew were fantastic, I returned another mat which I changed my mind on with no hassle at all. Really responsive and fast postage, bunch of legends

Best shop

Love this shop! all the best gear !!

Brian Harris
Excellent Mat for U/L Camping

Large, very comfortable mat with all the usual great Sea to Summit features - very light for size of mat (Lge Rec), inflation bag for quick inflation, inner and out valves set at 90 degrees to minimise fully opening in error. Wide, Rectangular shape perfect for a side sleeper.

Jordan Wright

Recommend the large rectangle if youre on the taller side. Super comfy, easy to pack up, and blow up. Definitely recommend.

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