Sea to Summit Ether Light XT Extreme Insulated Sleeping Mat
Details & Specs
For expeditioners seeking the lightest and most insulated, comfortable mat for cold climates - the Ether Light XT Extreme Mat from Sea to Summit will deliver.
This mat takes the design of their original bestseller and makes it warmer - so you can snooze comfortably when the temperature drops. The Air Sprung Cell construction conforms to your body for support, providing 10cm of stable comfort with a quiet and grippy 30/40D nylon face fabric. There are dual-density layers of THERMOLITE® insulation providing an ASTM R-value of 6.2, plus an anti-microbial treatment to prevent mould growth inside the mat. It’s fast and easy to inflate and deflate thanks to the multi-function valve, and it comes with an airstream pump sack integrated into the stuff sack to assist inflation. When in need of repairs in the field, make use of the self-adhesive patches included. Lastly, the PillowLock™ system stops your existing compatible Sea to Summit pillow from sliding around at night.
Snooze soundly on your lightweight and speedy cold-weather adventures, with the Ether Light XT Extreme Mat from Sea to Summit.
ASTM F3340-18 R-Value: 6.2
Dual-density layers of THERMOLITE® insulation
XT Air Sprung Cell conforms to your body for 10cm of support
Quiet and grippy 30/40D nylon face fabric
Field repairable with included self-adhesive patches
Ultra-fresh® anti-microbial treatment added to prevent mould
PillowLock™ system for securing separately available Aeros™ pillow
Multi-function high flow rate valve for easy and fast inflation/deflation
Airstream™ Pump Sack integrated into the stuff sack
If I'm 183cm, am I better off with the large or regular size??
Mark - Mornington, VIC (1 year ago)
It depends if pack size and weight are a consideration for you. A large portion of hikers choose a mat that is close to or shorter than them to save on these factors, its not uncommon to get a half sized mat for example. Realistically, your feet are going to be bundled up in a sleeping bag, so it may not be as noticeable if your feet are on the edge or slightly off your mat. The other consideration is if you sleep on your side or curled up in any way, your sleeping length is likely to be shorter than your standing height.
If it doesn't matter how heavy or large the packed mat is, there's no harm going for the long.
Lauren - Snowys(1 year ago)
Pillow attachment 1 answer
Hey there, Are any replacement sticker available for the pillow attachment system. Works great initially but the stickers soon become detached from the mat and remain stuck to the pillow with the Velcro so now my STS pillow slides off all the time.
Tim - Mittagong, NSW(1 year ago)
Might be best to get in touch with us about this, Tim, we'll take some details and contact Sea To Summit to see what we can do. Our contact details are here - https://www.snowys.com.au/contact-us.
Ben - Snowys(1 year ago)
mat, cover or ground sheet1 answer
Is there a standard mat / cover slip or ground sheet recommended for use under this mat?
Ryan - Thebarton, SA(1 year ago)
There's not sorry, as it's not something specifically required. If you are tarp hiking and don't have an enclosed tent, then a generic tent footprint or ground sheet does the trick. There is a fitted sheet for these mats that you could use on the bottom side, or you could use a liner and slide the mat into it like a pillow case.
Lauren - Snowys(1 year ago)
in summer?1 answer
Given the high R value, does this make the mat "hotter" to sleep on in summer? In other words, do I need 2 mats for snow vs summer camping?
Mo - Sydney, NSW(2 years ago)
Yes, absolutely. The mattress itself doesn't generate any warmth, it just acts as an insulative barrier between you and the ground. Its purpose is to prevent any temperature transfer from the ground, and vice versa. So in summer, it can be beneficial for insulating you from warm ground. As long as your sleeping bag, etc is appropriate for the temps you'll be in, you'll be fine
Lauren - Snowys(2 years ago)
Is this mat noisy?1 answer
Hi there, my 16 yr old daughter needs a another mat for her silver Duke of Ed camp as her other one (Seat to Summit Comfort Light Insulated mat) was too noisy during the last camp and apparently she kepts others awake because of her rustling!. How 'noisy' is this one in relation to the comfort light please?
Ana - Sydney, NSW(2 years ago)
We've had this question before and had feedback from customers aswell. The new Ether Light range of mats are found to be quieter than the other Sea to Summit air filled mats. They have a slightly different design with larger baffles that not only means they are quieter, they are also lighter for their equivalent thickness. We've recently recieved feedback from another customer who upgraded from the same Comfort Light Mat to an Etherlight, as said the difference was night and day, and the Etherlight was alot quieter.