Sea to Summit Ether Light XT Womens Extreme

27 - 27% OFF

$269.00$289.00 inc GST.

We’ve taken our best-selling Ether Light XT mat and increased the insulation to make it warmer for when the mercury drops.

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The Sea to Summit Ether Light Extreme Sleeping Mat acknowledges the gap at the upper end of our insulated sleeping mats. It provides an option for those requiring the highest insulation.

With an R-value of 6.3, our 10cm thick Ether Light XT Extreme air mat redefines lightweight sleeping comfort for winter adventures. Our Ether Light Extreme sleeping mat offers dual density Thermolite insulation layers to provide the best performance to weight ratio. Updated construction techniques ensure a complete fill.  These technologies work together to prevent convective heat transfer and boost warmth while remaining lightweight and packable.

Sea to Summit’s Air Sprung Cells are the reason you will sleep better on our air mats. Each Air Sprung Cell deforms independently and allows the mat to conform to your body shape. This provides support and comfort by more evenly dispersing pressure across the mat’s surface.

For our extra thick (XT) Ether Light design, we use many TPU loops to connect the top and bottom fabric layers to our Air Sprung Cell dot weld pattern. These loops allow the top and bottom layers to be positioned further apart which creates larger pockets of air when inflated – perfect for side sleepers. This design also requires less fabric overall which means great stability and comfort for less weight.

Key Features:

  •  ASTM R-value 6.3 is designed for cold-weather use
  • Dual-density layers of Thermolite insulation
  • Extra thick (XT) Air Sprung Cell construction for 10cm stable comfort
  • Lightweight, quiet and grippy 30/40D Nylon face fabric
  • Field repairable with included self-adhesive patches
  • Ultra-Fresh anti-microbial treatment added to the TPU formula prevents internal mould growth
  • Pillow Lock attaches an Aeros pillow to mat
  • Quick and easy inflation, deflation and adjustment with the multi-function, high flow-rate valve and supplied Airstream Pump Sack

Sea to Summit Ether Light XT Womens Extreme Regular Sleeping Mat:

  • Dimensions: Length: 168cm x Width: 55cm x Height: 10cm
  • Rolled Size: Diameter: 14cm x Length: 25cm
  • Weight: 747g

Sea to Summit Ether Light XT Womens Extreme Large Sleeping Mat:

  • Dimensions: Length: 183cm x Width: 64cm x Height: 10cm
  • Rolled Size: Diameter: 15cm x Length: 27cm
  • Weight: 935g

Additional information

Weight N/A
Dimensions N/A

Regular, Large


Sea to Summit


Regular, Large


Inflatable Insulated Mat


Sea to Summit

Sea to Summit is an innovative design and product development company that engineers a wide range of intuitively simple products that help make time in the outdoors fun, efficient and comfortable. From our West Australian base, Sea to Summit has grown into an award-winning global brand sold in more than 60 countries. Significant growth and international recognition has strengthened our original ethos ‘to equip and inspire’ and it continues to drive our research and development of the best materials and production methods. It inspires new product innovations that keep us at the forefront of bringing lighter, better made, better performing gear to outdoor enthusiasts around the world.


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