Sea To Summit - Ether Light XR Insulated Air Sleeping Pad

I am a 181cm, 100kg side sleeper and just bought the S2S Etherlight XR. It arrived this morning and my [**first impressions are here.** ](https://www.reddit.com/r/Ultralight/comments/1isa5ot/comment/mdq8c2p/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button)

Auspost delivered a new S2S Etherlight XR (regular Mummy) this morning so I set it up next to my old Thermarest Xtherm (2020 model) - Here are my first impressions. **Comfort** \- It feels more comfortable than my Xtherm. At 10cm thick it is much more plush. **Size/shape** \- The extra 4cm in width feels good. I am a 181cm, 100kg side sleeper and this feels like a better size and shape for me. It is also wider near the foot which is very welcome. **Profile** \- the Etherlight is higher at the sides than in the middle which feels a lot more stable. The Xtherm with its horizontal baffles regularly made me feel as though I was about to roll off the side. **Noise** \- They are roughly the same in volume but it is a different sound. The Xtherm sounded like a muted chip packet - still crinkly but not as noisy as the old Xlite. The Etherlight sounds more like a thick balloon - still makes a noise but a lower pitch. **Weight** \- Heavier. On my scales the Xtherm is 440g. S2S was 481g. **Warmth** \- The design looks pretty good. The new Etherlight uses reflective aluminium film - similar to the thermarest. The welds use a loop in the centre so it maintains an air gap even at the weld. Will actually take a few nights outside to really tell. I am not expecting it to be as warm as my old mat but we shall see. **Slipperyness** \- The fabric feels a little more grippy than the Xtherm so hopefully won't slip around as much. Once again - will need a few nights in the outdoors to really tell. **Packability -** Great. It folds down to same size as the Xtherm. I believe is a great improvement over the old Etherlight XT due to the new insulation. So on most points the Etherlight looks to be a winner. Size, shape and comfort is great. Weight is a bit higher and warmth is TBD but I feel like this is going to be my main mat form here on.

I tried both and went with the Ether Light XR. It came down to what felt good. I didn’t think the baffle design on the Tensor AS was comfortable or distributed weight well and much preferred the baffling on the Ether Lite as a side/stomach sleeper. I plan on upping the R value with a Z-lite pad if necessary.

The Ether Light is woven nylon just like the Nemo, but 30D vs 20D for the top. I compared them back in May, but I remember they felt fairly similar material-wise. I did think the Nemo was slightly more crinkly. The Ether Light is a little slippery, but I think it makes it easier to flip around. My last pad was a polyester Exped Dura which had a lot of friction going on with my clothes, which made it annoying to flip around at night because my clothes and quilt would get bunched up and twisted.

No problem! It was one of the reasons I switched pads. The other was that I didn’t find vertical baffles all that great for side sleeping. The arm I slept on frequently went numb, and I’m pretty sure it was from the baffles pressing against it.

I’ll second the XR. It’s pretty comfy for stomach/side sleeping. But also, I tried out the NeoLoft at REI this weekend and holy crap is it a comfy cradle of air.

I have an Exped Dura 3R and it’s very warm and so far, has proven to be durable. I’ve taken it down to 30°f with no extra foam pad beneath and slept warm. Never had any air leak out. I’m not a huge fan of the vertical baffles, but I must say that the edge baffles being slightly thicker does help keep me centered. Exped uses a microfiber insulation on these pads instead of reflective film, and I’m sold on it. I intended to swap the Exped for the new Sea to Summit Etherlite XR that has reflective insulation, but I shivered my way through a 42°f night on it.

Picked up a S2S Etherlight XR and had my first 4 days on it recently. Super comfy, even as a side sleeper.

Sea to summit etherlight xr is very comfortable for a side sleeper as well, while not being too heavy or bulky.

The new **Sea to Summit Etherlite XR** Mummy Large. 10cm/4inches thick and comfy. Packs small. 580grams. other good current inflatable pads - Nemo Tensor All Season - Thermarest NeoAir NXT - Naturehike R5.8 (Budget option at $90)

Sea To Summit Etherlite XR

The Sea to Summit Etherlite Woman has been replaced by the new Etherlite **XR** which is warmer lighter and packs smaller. My advice would be to test lie in a shop - Thermarest NeoAir NXT - [Sea to Summit Etherlite XR](https://seatosummit.eu/en-ch/products/ether-light-xr-insulated-air-sleeping-pad) - [Nemo Tensor All Season](https://www.nemoequipment.com/products/tensor-all-season-insulated-sleeping-pad)

The newly updated version Etherlite X**R** which came out around April is a much better pad. Packs smaller, weighs less and is much warmer. It uses silver reflection film instead of insulation. I owned the XT before and let me tell you if you can sell the XT and buy the XR it's that good. https://seatosummit.com/products/ether-light-xr-insulated-air-sleeping-pad?srsltid=AfmBOoq_8pObfHzj71aOkuP45MvfnKwCO0wnHfKuJmTFyxk1hzqLM942 Ether Light XR Insulated Air Sleeping Pad

Same. Had the chance to try both in stores. I am a side sleeper / stomach who turn around a fair bit and just preferred the Ether (Long Wide)

I was in the same dilemma this week and ended up with the ether lite XR (XR is the new version). I think it’s incredibly comfortable from my one night this week. If you want something potentially comfier, look at the thermarest Neoloft, it’s more like a puffy air mattress if you’re into that. If you don’t care about size weight, look into something self inflating or something like a exped mega mat

Looking to upgrade my sleeping pad in a 12L 3-season overnighter kit, so optimizing for packed size. I know about therm-a-rest 3/4 pads, but I've had issues with nerve compression due to the baffle design, making it really hard to sleep. If there's nothing better out there, I can try to make it work. Its specs are hard to beat... I've been eyeballing the new S2S XR pad. Seems to pack even smaller than their shortest UltraLite pad (the orange one.) Weirdly the small and regular have the same packed size listed on the S2S site. Heavier than the x-lite but pretty packable, comparable r-value and I could actually sleep on it. Any other pads people would recommend? Really aiming for >3 R-value minimum so I can get 3 season usage. Thanks Edit: Ordered the Tensor Elite Short to couple with a torso-length GG thinlight. Technically that's two pads and not one, but being able to just throw the thinlight on the outside of the pack makes that a non-issue, plus I get the various uses it provides. We'll see if I regret my decision...

this is probably what I'm going to end up going with. ordered the tensor elite short and an S2S XR short to compare. S2S is heavier and bulkier but still pretty small with a better r value and durability. although at 12L it probably won't win out over the tensor

It's best if you can visit a local outdoor retailer like REI to try out some pads. That way you know what's comfortable for you, and can make some choices on picking the lightest pad that meets those needs. For me I find the Nemo Tensor (lightest), S2S Etherlight XR, and REI Helix (heaviest) to be reasonably comfortable pads as well. Xlite/Xtherm were definitely less comfortable last I tried.

I have the SeatoSummit Ether Light XR Reg Wide and love it. Super comfortable, warm and quiet.

I actually cross-shopped these three pads earlier this summer, and tried each one of them. My thoughts below: Packed size (smallest to largest): \-Nemo \-S2S \-Big Agnes Actual measured weight (lightest to heaviest): \-Nemo \-S2S \-Big Agnes Comfort (most comfy to least comfy): \-S2S \-Big Agnes \-Nemo I settled pretty happily on the S2S. It's significantly more comfy (IMO) than the other two. The other two have a slippery surface that makes the last 1" on each side unusable since you slide off it anyway. Even the Big Agnes, with it's raised outer baffle, doesn't help as much as you'd think since it's so slippery. For reference, I'm a side sleeper and move around quite a bit throughout the night. The S2S surface has more friction, is quieter, and just isolates movement overall a little bit better than the other two. I couldn't compare/contrast actual warmth since I've only taken them summer camping.

LOL, yeah I dove pretty hard into upgrading my sleep system this year. I tried the rectangular reg/wide in all pads. I settled on the S2S and love it. I used the Nemo several nights as well as the S2S several nights. The S2S is way ahead of the Nemo in terms of comfort, with only a slight penalty in weight. Packability is pretty similar, with a slight nod to the Nemo. You may be thinking of the previous gen S2S "XT" pads, which were not very packable, slightly heavier, colder, and maybe louder? The new "XR" version is fantastic. Big Agnes was another step up in bulk and weight, and I just couldn't justify either when the comfort wasn't as great as the S2S (which surprised me). I never camped with the Big Agnes, only tried it at home.

That comment is incorrect. It may be referring to a previous generation. Of the 3, the STS XR pad is least slippery. I sleep in pajamas and bring a leg up when I sleep, so the slipperiness is annoying for me since it just allows my leg to slide back down/off the pad (this is why I tried and ultimately moved away from the Nemo). The S2S had enough friction that it wasn’t an issue. I’m sure the dimples help, but the material itself is just different/better. Speaking of, I know the Nemo looks like it has dimples, but it really doesn’t. They do nothing.

I have it and love it. I’ve used basically all the popular pads over the years and I really, really enjoy the XR. It’s my current go-to.

Only used it about 7 or 8 nights, but none so far

31° is lowest I’ve had it out. Didn’t feel cold.