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Ether Light XT Extreme Insulated Air Sleeping Mat

Sea To Summit - Ether Light XT Extreme Insulated Air Sleeping Mat

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Based on 1 year's data from Jan 28, 2026 How it works

Liked most:

276

93


"It’s is SO MUCH more quiet than the s7 it ramped up the suction power from 4000 to 19000 yet I can let it clean my office room while being in a call now."


"Extremely quiet compared to our last one to the point where we can have it running while my partner is in work meetings (besides emptying water and dust bin, but that is 10 seconds of loud x 2)."


"pads that lift on carpet so you can run it while the baby naps"

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78


"Just had my second camp out with it. 0 issues with warmth at 50F , unsurprisingly. Also at 60f I didn ’t sleep hot so that ’s nice too."


"I can take it down to like 25-30F very comfortably."


"20 degrees F comfortably from below. Quilt wasn't up to it"

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"Another feature I love about the Sea to Summit is that their storage sack is also the pump sack. I’ve often forgotten to bring my Big Agnes pump sack when I’ve had my Rapide with, whereas that never happens with the S2S one."


"It uses an inflator bag and inflates easily/quickly."


"and has a bag system to inflate so you’re not hyper ventilating trying to blow the thing up at altitude."

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"I just put up with the pinholes and patching them on trail because I can't sleep better on any other pad. ... There's a huge difference in comfort depending on your body between the dimpled baffling of the Etherlight/Tensor and the horizontal baffling of the Xlite. ... I can't sleep on horizontal baffling despite all the good features of the Xlite. ... I'm a side sleeper and my arms and shoulders ache and/or fall asleep or go numb on the Xlite. For whatver reason I can only sleep on dimpled baffles (tensor, etherlight)"


"I sleep all night and no body aches."


"This specific pad and its sibling, Ether Light XT Insulated, have been my primary pads the past four-ish years. ... They are 4" thick and the most comfortable pads I've used, probably tied with the NeoLoft. ... Never woken with my arm numb, and the only pad I've ever slept seven-plus hours straight-through."

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"This specific pad and its sibling, Ether Light XT Insulated, have been my primary pads the past four-ish years. ... They are 4" thick and the most comfortable pads I've used, probably tied with the NeoLoft. ... Never woken with my arm numb, and the only pad I've ever slept seven-plus hours straight-through."


"Love my S to S pad also. ... Rivals my Select Comfort bed at home. ... Bought a back up in case they go out of business."


"I love the etherlight, I ’m a side sleeper and it really helps prevent my arm from falling asleep."

Disliked most:

49

78


"sounded like a loud squeaky balloon. ... Every time I shifted weight or switched sides it was loud. ... Even someone walking by looked at me and said “that’s really noisy”."


"The fan that circulates the air is so ridiculous it sounds like an airplane is idling inside my house, and it literally changes the air pressure in my kitchen and hurts my ears"


"It ’s super loud ... Noise at least on hardwood is easily double the qrevo"

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78


"getting stressed out about the whole process of plugging in, lifting, storing the giant Kirby and not vacuuming at all in the end."


"heavy as hell"


"You do NOT want a Kirby if you have stairs - trust me."

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"found it to be the equivalent warmth of the insulated static v plus my ccf, and even pairing the etherlight extreme with a ccf, and having it fully inflated wasn’t nearly enough for sleeping on frozen ground or snow."


"If I need more than 4 R insulation (I'm sleeping on snow most likely) I'm taking a ccf for backup because I don't want to die."


"I've only slept on it for one night with a Thinlight underneath, where it got down to 35F and I felt the cold under the pad for sure but it was fine. ... I would *never* use it without a Thinlight. ... not anywhere near as warm."

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"had multiple get air leaks in all the seams so I gave up on using it."


"which started leaking after 3 nights"


"Avoid StS Etherlight XT at all costs, as I have had two getting pinctures where the dividers attach. ... Constant flats from just lying on them."

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"I had to return the etherlite after waking up with a sore back every night."


"I found that it hurt my hips even when I let out a bunch of air (which compromised the r value even more)."


"I find horizontal baffles very uncomfortable."

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r/UltralightMy sleeping pads never seem to last more than a few months
11 months ago

If it’s rare, yes. However I feel like failing welds is becoming more common with new baffle designs, and I don’t want to through the hoops of buying and then returning gear all the time, and I especially don’t need it failing on me when I’m in the middle of the woods. I wouldn’t want a tent that might not be waterproof just because it has a warranty. It’s actually worse because you could test a tent right away whereas that poorly designed sleeping pad might need a good deal of use to expose its weakness. Maybe I’m off base here, just going based off posts I’ve read while trying to upgrade my sleeping pad (ended up returning the etherlight xt extreme)

r/UltralightMy sleeping pads never seem to last more than a few months
11 months ago

Oh yeah it’s nonsense lol. I’m so confused honestly. I got it before the R value standardization made a scandal out of it. I knew it wouldn’t be as warm as its stated r value, but found it warm enough down to around 34F on its own. If I found a lighter pad with baffles like that I’d try it. Used to have a thermarest with horizontal baffles, got hip pain. Ccf pad, hip pain. Tried the new quilted air spring baffles that everyone is raving about in the form of the etherlight, still got hip pain. The etherlight I would have returned anyway though as I found it to be the equivalent warmth of the insulated static v plus my ccf, and even pairing the etherlight extreme with a ccf, and having it fully inflated wasn’t nearly enough for sleeping on frozen ground or snow. Having a hefty pad that’s neither warm nor comfortable was just unacceptable for a $180 (on sale) pad. So for now I’ll alternate between the klymit and my hammock lol

r/UltralightUL comfortable sleeping pad for side sleepers?
11 months ago

I hope the etherlight works for you. I’d get it from Rei in case you need to return it. I returned mine as the extreme version wasn’t nearly warm enough to justify the price and weight. I’d have put up with that if it was super comfortable but I found that it hurt my hips even when I let out a bunch of air (which compromised the r value even more). I was really bummed about it all. Thought I’d found my holy grail pad

Reddit IconRevQB 1.0
r/CampingandHikingSea to Summit Ether Light XT vs. Comfort Plus - which is more comfortable?
12 months ago

I’ve slept on the Comfort Plus for a couple dozen nights and just picked up the Ether Light XT Extreme after having a couple nights of bad hip pain using the comfort plus. I haven’t slept on the Ether Light yet, but it seems to be much more comfortable for side sleepers like myself. I got the regular sized Ether Light XT Extreme and have the rectangular Comfort Plus. The Ether Light is a lot smaller when packed and I’m sure the non-extreme would be even smaller yet when packed. I also think the 3” thickness of the Comfort Plus is slightly exaggerated, seems to be less than that, but that’s anecdotal. The Ether Light is markedly thicker and fellow side sleepers seem to really enjoy it. I think both are pretty nice, but based on the necessity to sleep on your side and reduce packed size/weight, would recommend the Ether Light.

r/CampingandHikingSea to Summit Ether Light XT vs. Comfort Plus - which is more comfortable?
9 months ago

The Ether Light XT was very comfortable, would definitely recommend if you’re primarily a side sleeper. If not, and you will be primarily car camping, the Comfort Plus will do well. The Ether Light’s are not on sale anymore either which is a bit of a bummer.

Reddit IconShowerAlarmed5397 1.0
r/wildcampingintheukRecommendations for a wide sleeping pad around £100
10 months ago

One of the guys I go on trips with got his this week. Be interesting to see how it performs vs my S2S ether extreme!

Reddit IconTHEHELLHOUND456 0.5
r/CampingGearAny strong reason to choose one over the others?
2 months ago

I went S2S Ether Light XR PRO EXTREME. Great size, sound, and R value

Reddit IconMasseyrati80 0.5
r/CampingGearBest cold weather mattress that’s NOT an xtherm
3 months ago

Sea to Summit has a structure they call "air sprung cell". I personally own an old NeoAir but have tested a Sea to summit pad with that structure and I must say, it was much comfier. I've been trying to justify chucking in the money for a new pad, but am not there yet.

r/campingBack pain while sleeping in a tent.
3 months ago

Check out airpads by Thermarest, Exped and Sea to Summit. Not the self-inflating ones, the ones with thick air chambers. They can be up to 4" thick, and the comfiest ones are miles away from a roll mat. If you buy one, don't inflate them by blowing, as exhaled air has enough moisture in it to cause issues down the line.

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r/armyBest sleeping mat for the field?
6 months ago

Imo yes. The Sea to Summit mats are incredibly comfortable with 4-6inches of foam. I have one that has a built in pillow that I use for my feet (helps blood flow at night after a shitty day with the infantry Joes) and bought a wider inflatable pillow for my head. Best part is both the mat and pillow deflate and fit inside the small front pockets of the ruck.

Reddit IconAccomplished-Way1575 0.3
r/bicycletouringBest winter sleeping pad for comfort, warmth, and durability?
3 months ago

Exped Dura. It has down. I have the 6R LW. You can get a slightly lighter version which is lighter due to thinner face fabrics. Avoid StS Etherlight XT at all costs, as I have had two getting pinctures where the dividers attach. Constant flats from just lying on them. And I am not the only one. This is why I bought the Exped Dura.

Reddit Iconbillymcnilly 0.3
r/UltralightIs it worth it to invest in an inflatable sleeping pad?
9 months ago

Self-inflating foam mats seem like a good middle ground. I hadnt seen the nemo flyer. Looks very similar to the new sea to summit pursuit self-inflating that i just got (5cm thick, 600g). It's extremely comfortable and i cant wait to try it out, after getting zero sleep on my etherlight xt recently. Do you have the zlite for extra padding, or for extra warmth?

Reddit Iconcalypsosa 0.3
r/UltralightWhat sleeping pad to go for: Nemo Tensor All season, Big Agnes Rapide SL or Sea to Summit Ether lite XR?
5 months ago

Im not sure if I can trust S2S with another pad after my freezing XT. Comfort counts for nothing if using a quilt and you're cold.

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r/UltralightUL comfortable sleeping pad for side sleepers?
11 months ago

\+1 for the Ether Lite! I've got a bunch of pads, but I always end up going back to this one for comfort. The material is a little squeaky and I would trust it below freezing, but it's very comfortable. I've also seen it on sale regularly for less than $150.

r/UltralightSleeping Pad Choice
5 months ago

The new SeatoSummit XR Pro pads might be a good option. They seem to have really improved on the size/weight, and have around a 7 r-value. I have one of their older XT non-pro models and find it really comfortable.

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