Women's Ether Light XT Extreme Insulated Air Sleeping Mat
BEST USE: Cold Weather Backpacking
WEIGHT: 1lb 8oz | 685g
PERFORMANCE: 4 Season
PACKED SIZE: 6.9 x 9.4in | 17.5 x 24cm
Shipping & Returns
Our warehouse is actively shipping orders from 8am to 1pm MST Monday through Friday. Most orders ship in one business day, but the transit time can take up to 7 days, depending on your distance from Boulder, Colorado.
2nd Day and Next Day Air orders will ship same day if placed by 1pm MST, Monday-Friday (except holidays).
All orders are eligible for fast and easy returns within 60 days of purchase.
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Shaped specifically for cold-weather women adventurers, the extra-thick Women's Ether Light Extreme is constructed with additional insulation compared to the unisex model. The XT Air Sprung Cells provide four inches of stability and comfort, while increased-density dual layers of THERMOLITE® insulation prevent convective heat loss and internal air movement.
DESIGNED FOR WOMEN
Shaped for comfort
Narrower at the shoulders, but wider between the hips and knees. This shape significantly enhances comfort for those who sleep in a figure-4 position (or on their sides or stomach) by giving them the room they need to move while they sleep.
Air Sprung Cells provide support
Air Sprung Cells provide a stable, supportive sleeping surface. Hundreds of individual air-filled springs (or ‘cells’) provide the kind of support you may be used to from a high-quality pocket sprung mattress. All sleepers – but particularly those who need hip and back support – will benefit from the stability that an Air Sprung Cell pad offers.
Air Sprung Cell pads are quieter than air pads which use a reflective film in their construction. Less noise throughout the night means a better night’s sleep, night after night – Sea to Summit pads use stronger materials and more reliable technologies than other pads. Women’s Air Sprung Cell pads also feature more lofting insulation than the unisex version.
Thermolite® HL-1 is part of the family of Thermolite® materials used in Sea to Summit sleeping bags, sleeping bag liners and sleeping mats. HL-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™ of our sleeping mats to prevent convective heat loss from your warm body to the cold ground.
The Airstream™ Pumpsack is Sea to Summit's big volume mattress pump which we've now integrated into the stuff sack of every Air Sprung Cell™ mat. 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 our mats. 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. The Airstream™ Pumpsack is also compatible with Sea to Summit's smaller multifunction valve, which is now featured on the updated Aeros pillow range, along with the Air Seats.
To ensure that you will be warm when you sleep (especially when the ground is colder), it is essential to know how well your sleeping mat resists heat loss into the ground. This resistance is known as an R-Value. A laboratory-tested R-Value is the only way to measure resistance to heat loss. Sea to Summit has always provided independent lab-tested R-Values for its sleeping mats. Since January 2020 we have used the industry standard ASTM F3340-18 test to provide R-Values for our mats. There are other factors which will determine how well a sleeping mat will insulate; but the standardized ASTM R-Value test means that you can compare resistance to heat loss in sleeping pads across different brands.
The 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.
Best UseCold Weather Backpacking
Comes WithStuff sack with integrated pump, repair kit & PillowLock™
FabricDurable 30D / 40D nylon
Season Rating4 Season
SpecialAnti-microbial liquid-extruded TPU lamination to reduce delamination
Thickness4 in / 10 cm
Frequently Asked questions
Really comfortable at this thickness?
Yes. Thickness isn't the key factor for sleeping pad comfort – the number of points of suspension is. Our air sprung cell sleeping pads support your body weight with hundreds of individually air-filled springs.
Easy to inflate?
Yes! The supplied stuff sack features an integrated Airstream Pump which will quickly inflate the sleeping pad. This means no dizziness for you, and practically no condensation moisture inside the pad.
Noisy when I shift around in my sleep?
No. The reflective material (Exkin Platinum®) and the outer laminate material are both very quiet. Your tent buddy will thank you in the morning.
Is the Women's Ether Light XT Insulated warm enough for winter conditions?
Absolutely. The tested R-Value of 6.3 and lack of internal air movement (which reduces heat loss) makes it perfect for four-season use.