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Sea to Summit Ether Light XT Insulated Sleeping Pad

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Sea to Summit Ether Light XT Insulated Sleeping Pad

sku# 187457
Sea to Summit - Ether Light XT Insulated Sleeping Pad
Model Info
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Product Info

The award-winning Sea to Summit Ether Light XT Insulated Sleeping Pad is quiet, comfortable, and packed with insulation technology that keeps you warm all night long. Plus it comes with a stuff sack that doubles as a pump sack, so setting up your beauty rest mattress is easier than ever.

Product Details


30D / 40D Nylon with Anti-microbial Liquid-extruded TPU Lamination


Thermolite HL-1HL-1 high loft insulation is a fiberfill constructed with a unique 3D crimp of hollow-core and solid fibers, which provides excellent lightweight warmth with superior durability. The Thermolite insulation lofts up inside the Air Sprung Cells™ to prevent convective heat loss from your warm body to the cold ground.

Exkin Platinum® InsulationReflects your radiant heat back to you.


Thickness4" / 10 cm


Ether Light XT Air Sprung Cells™Inspired by the springs of a modern pocket sprung mattress, dozens of interconnected chambers (called Air Sprung Cells™) perfectly support your weight and conform to your body contours. The Ether Light range uses loops of TPU material to connect the top and bottom welds. This produces a thicker cell to give you a plush sleeping experience without compromising on Sea to Summit's Air Sprung Cell comfort.

Integrated Airstream PumpsackThe Airstream™ Pumpsack is Sea to Summit's big volume mattress pump. The clever design opens at one end to stow the air mat and the other end unfolds to become the built-in pump. The Airstream™ Pumpsack can be inflated with a single breath and takes just two or three cycles to fill the mat. Not only is it faster than inflation by mouth, but there is minimal breath condensation entering the mat and it eliminates dizziness from blowing the mat up directly by mouth.

Pillow Lock™ SystemThe Pillow Lock™ System comprises of self-adhesive hook-and-loop patches which are supplied with all Sea to Summit sleeping mats (as of Spring 2019). Attached to your sleeping mat, these patches secure your pillow and prevent it slipping – yet they will not snag on clothing or other lightweight fabrics. All Sea to Summit Pillows (as of Spring 2019) are compatible with this system. Existing pillows can be made Pillow Lock™ compatible by adding an Aeros Pillow Case.

Extrusion LaminateExtrusion lamination is common in the medical and aeronautical industries, but Sea to Summit pioneered its use in outdoor products. Liquid Thermoplastic Urethane is applied to the face fabric through an extrusion head, where it bonds permanently. The result: Sea to Summit sleeping mats are more reliable and longer-lasting.

Multi-function Valve for Fast and Easy Inflation, Deflation and Fine Tuning of Air Pressure

Includes Quality Stuff Sack and a Repair Kit


  • Material: Nylon
  • R-Value: 3.2
  • Sleeping Pad Style: Air
  • Warranty: Limited Lifetime
Size Large Regular Small
Weight (oz) 22 17.3 16.6
Weight (g) 625 490 470

Other Notes

Sea to Summit products can only be shipped within the United States and Canada



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