`Remember me on this computer` option

Select the `Remember me on this computer` option if you wish to be automatically logged on to the computer in future. Your account will remain active for 45 days. Please do not use the `Remember me` option if using a computer with public access or that is used by more than one person.

Sea to summit

Sea to summit Ether Light XT Insulated Mat

Sea to summit Ether Light XT Insulated Mat

  • Sea to summit Ether Light XT Insulated Mat
  • Sea to summit Ether Light XT Insulated Mat
  • Sea to summit Ether Light XT Insulated Mat

Sea To Summit Ether Light XT Insulated Mat

Product description Sea to summit Ether Light XT Insulated Mat

Perfect for side sleepers, the extra height of this mat lets hips sink deeper into it without touching the ground.

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.


- 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
- Ultra-Fresh® anti-microbial treatment is added to the TPU formula to prevent internal mould growth
- Air Sprung Cells™ for a more comfortable sleep
- Multi-functional, high flow-rate valve
- PillowLock™ attaches your Aeros™ pillow to your mat, holding it in place for a slip-free sleep


- Mat: 100% nylon; Valve 100% TPU; Insulation: 100% polyester; Stuff Sack: 100% nylon

Weight: Rectangular Regular Wide 630g; Rectangular Large 690g; Regular 490g; Small 470g; Large 625g

Sea to summit Ether Light XT Insulated Mat has the official guarantee from the brand Sea to summit. Buying in our online outdoor store, you will have Sea to summit Ether Light XT Insulated Mat at home in a few days. At this moment the product is in stock and the price is 169.49 $. Don´t miss this opportunity!

Features Sea to summit Ether Light XT Insulated Mat


Customer reviews and questions (30)

Write a review about this product and earn CoINNs (existing customers only)

Write a review and earn CoINNs

(existing customers only)

Sea to summit ether light XT Insulated


Used this mat last week on a camping trip on a scottish island. Very comfortable did not once need to be re-inflated. Well worth the money spent .

Really good Mat


This is a really good Mat. We had the precious skinnier model of the sea Ros unit mats and this is much better and much more comfortable!! It’s the closest thing you’re going to be able to have while camping ultralight!!

Comfortable and well finished mattress


Finally a mattress that allows you to sleep on your side, it certainly does not equal the comfort of your cozy bed but it is closer to a comfort worthy of the name. The finish is good and the anti-puncture kit is quite nice. If the weight of this mattress is a little higher than my previous ones, it is because it has in its carrying case the famous inflatable system, very practical, no need to empty its bag sometimes badly stored to find the inflatable bag. This SEA TO SUMMIT is also less noisy than my EXPED SYNMAT and will tend to slip less because of its more "eye-catching" velvet fabrics. Remains the price, quite expensive, fortunately at a very good price on the TREKKIN site, 130 euros instead of the 170 euros observed in general. The delivery was a bit long, but I think this is due to COVID 19 and the delays that have accumulated. In short, I recommend the site and the mattress.



Haven't been able to test it for real yet. Was a good moment on the living room floor though, on the side. Anyway. Will put it to the test when we walk the King's Trail this summer :)

R value


What is the R value of this mat, please?

our experts answer

Hello, Sea To Summit Ether Light XT Insulated Mat has R Value 3.2. Regards

Comfortable mat


You can sleep comfortably without facing the ground even if you turn to the side

Sleeping wonderfully


Sleep wonderfully, nice and warm and wonderfully light

Very good first impression


Just tested once in a tent (temperature of 11 ° harms me) and I was not cold. Very comfortable and easy to inflate mattress. It is light and quite small when folded. Convenient for those who sleep on the side. I took the size Large which is perfect for my size: 1.90m and 84kg. Smaller would have been too small.

Perfect Mat


Most comfortable mat ever. I thas good R-value, it is lightweight and cost effective here on trekkinn.

Nice mat


Most comfortable and ultralight mattress ever. With R-value 3.2

Satisfied! great product


Product as per technical data sheet. A few grams more than other models but decidedly comfortable, with its 10 cm thickness, for those who sleep on their side Weight controlled with a precision balance, corresponds to what was declared by Sea To Summit. It inflates comfortably effortlessly with its practical bag. It deflates quickly and impressively by opening the valve completely! I confirm that RValue has dropped 3.2. Tracked shipping and punctual delivery as per notice.

Comfortable mat


Quite ligthtweight, very comfortable (even when laying on the side) and easy to inflate with the pumpsac. I haven't tested it outdoor yet.



Super nice sleeping mat, wide and comfortable Fast delivery

Very comfortable


The most comfortable pad I´ve ever used. Pay attention, the R Value decreased with the new standard of measurement to 3.2.

Excellent product


It is simply perfect, very comfortable, almost like sleeping at home, easy to inflate, very resistant and silent to move over it. The space it occupies is almost nil, very good investment. The custom and dispatch service was very efficient.

Good spoon


Comfortable, long, light. Included was a small carabiner

Fine mat


Nice mat!

Delicious mat


Tested immediately, what a super mat. As a side sleeper always struggling to find a nice mat, but this one is great! Only the delivery time of 2-3 days to the Netherlands is incorrect, I had to wait a week for it.

Excellent Insulated Mat!


Very lightweight and compact rug! Inflated quickly with a pressure bag. It does not break even while sitting.

Excellent mattress


It is the best by far, people who have trouble sleeping like me and had stopped camping for bad nights, now with this, one can go back to camping and get a comfortable and warm sleep. I recommend it 100%

Super happy with the purchase


Ultra-comfortable mat, very easy to inflate with the pump bag and is also quickly emptied and rolled up again. I recommend it to everyone!

Best mat ever


Nice thick sleeping mat. Is perhaps even more comfortable than a normal bed. With the pump bag the mat can be inflated very quickly and the mat stays nicely dry inside. The mat is also nice and warm to sleep on. No problems with cold from the ground. Very small on the roll and nice and light. A big improvement on the self-inflatable mat that I had before.



Comfortable sleep. There will be no sore spots. Also nice light. If the surface material was not loud, this would be perfect.

Great sleeping pad


A couple of weeks in a row come to sleep on top of this and I am very happy. It has a lightweight and compact footprint, and sleeping comfort is best in class A. The first platform that does not become sore. The only minus comes from the soundproof surface. Coating when you could still get it done this would be perfect!

It does not get better


Highly recommended and 5 stars from here!

Sea to summit ether lt xt insulated mat


Back to back on the side.

Most comfortable lightweight mat ever for side sleepers!


My search is over! I'm ultralight backpacker and have tried lots of mats over the years, especially ultralite options from Exped (failed at the valve), Thermarest (xlite - great but noisy and easy to roll off to the side, and hard to deflate quickly, and it gets moldy) and Sea to Summit (loved their UL mat overall, but it was too thin to keep me from bottoming out when on my side and moving around). Sure, the Ether Light XT is a bit heavier, but it is more than worth the weight penalty. I'll now exclusively use this mat, also for backpack travel in civilization when I need a mat to toss on the floor at people's homes.



I will sleep like a king! Workmanship and materials for 5+. With an increase of 184 cm fit on a rug of size L with comfort. Includes a repair kit and stickers for fixing the pillow. Fantasy!

Conform to the description


Quality is at the rendezvous. Comfortable and light. I recommend it with no hesitation !

Super comfort


Incredibly comfortable, warm and thick rug, very reminiscent of a regular orthopedic mattress.

Write a review or ask our dedicated team of experts a question

Product rating

Note: your review will be reviewed by our staff and posted within 5 working days. Your question will be answered by email, so please make sure your email address is correct.

I accept your Privacy Policy