Sea To Summit

Ether Light Series

Sea To Summit

Ether Light XR Pro Insulated Air Sleeping Pad

Sea To Summit Ether Light XR Pro Insulated Air Sleeping Pad
TL;DR: Comfortable, compact, but prone to leaks and often noisy.

Overall

#9 in

Sleeping Pads

according to Reddit Icon Reddit

Sentiment score72% positive
86
11
22

Top Pros

Top Cons

Last updated: Sep 20, 2026

Reddit Reviews

Reddit IconAccomplished-Way1575
11 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 IconAggravatingTooth1901
10 months ago

I like my ether light xt by sea to summit. But it’s really the only decent one I’ve ever tried so. Or much to compare it to.

Reddit IconAlternativeDot6815
9 months ago

63 yr old M with bony hips. Just a few years ago I could honestly sleep all night on a 1" foam, but something changed when I hit 60. I tried various 4 inch inflatables. Best comfort I have found is Sea to Summit etherlite. Few extra ounces weight penalty but worth it, good sleep is everything. Also slept great on a fat Big Agnes but had bad luck 2 different outings with slow leaks. Actually slept best with a hammock rig, still use it occasionally - but the hammock, skeeter net, tarp, under quilt, and not having a tent to hang out in during poor weather kinda gets old.

Reddit IconAltezzaTravel
6 months ago

Hi! Are you planning to use it on Kilimanjaro? Many tour operators already include sleeping mats in their packages, and they’re usually about 2–3 inches thick, which is comfortable enough for most hikers. An R-value of 3.6 is basically the minimum for Kilimanjaro - it can work, but you’re definitely taking a risk, especially if you get cold easily. If you haven’t tested it in similar conditions with your sleeping bag setup and still prefer to bring your own, it might be safer to go with the Ether Light XR or even the XR Pro if you tend to get cold easily.

6 months ago

Hi! Are you planning to use it on Kilimanjaro? Many tour operators already include sleeping mats in their packages, and they’re usually about 2–3 inches thick, which is comfortable enough for most hikers. An R-value of 3.6 is basically the minimum for Kilimanjaro - it can work, but you’re definitely taking a risk, especially if you get cold easily. If you haven’t tested it in similar conditions with your sleeping bag setup and still prefer to bring your own, it might be safer to go with the Ether Light XR or even the XR Pro if you tend to get cold easily.

Reddit Iconandrew314159
6 months ago

I have the ether light xr and it’s been amazing so far. It’s so comfortable. I was on a two and a half week climbing trip so comfortable sleep was a priority. It’s not the lightest but I wasn’t moving every day. I decided I could cut weight elsewhere if I really wanted and went for comfort. It is smaller and lighter than my old pad anyway. What’s your expected night time temperature? How important is comfort vs a few 100g weight difference? How important is price? I often buy cheaper gear but my sleep is an exception

Reddit Iconartdecodisaster
12 months ago

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.

10 months ago

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.

9 months ago

So I bought the ether light XR in the spring and was happy with it until October. My backside was constantly chilled on a 38°f night with a z lite sol under it and 10° down quilt. I was wearing wool socks, beanie, and baselayers. The second night was 45°f and I was more comfortable, but I was pretty disappointed given that it slept colder than the 3R Exped it was meant to replace. The old XT had reports of sleeping cold, but I was hoping that S2S had fixed that with the new iteration. If I were you, I’d get the Exped.

9 months ago

Yes, I could feel the cold coming through the XR with the ccf under it. I’d never had that issue with my 3R Exped, in fact, I have taken that down to 32°f with no ccf under it and never felt the cold. They have different insulation types, but I didn’t think that would matter based on the R ratings. The XR is more comfortable though, so I’ll probably keep it for warmer temps.

7 months ago

I wasn’t pleased with the XR’s performance around 40°, it slept cold even with a foam pad under it. I wish I’d gotten the cold weather version. I’ve read that the Rapide also has underperformance issues related to R-value. There are a lot of good thread on this topic in r/ultralight.

Top Sleeping Pads on Reddit

1
Exped MegaMat Series

Exped

MegaMat Series

92% positive of 454 users

Car camping comfort champ, but some side sleepers find it thin.

2
Exped Ultra Series

Exped

Ultra Series

88% positive of 134 users

Lightweight side-sleeper comfort, but a bit pricey and bulky.

3
NEMO Tensor Series

NEMO

Tensor Series

74% positive of 394 users

Ultralight side-sleeper comfort, but slippery and prone to leaks.

4
Big Agnes Rapide SL Insulated Sleeping Pad

Big Agnes

Rapide SL Insulated Sleeping Pad

76% positive of 228 users

Comfortable with side rails, but heavy and warmth claims disputed.

5
Therm-a-Rest NeoLoft™ Sleeping Pad

Therm-a-Rest

NeoLoft™ Sleeping Pad

80% positive of 130 users

Very comfortable, good service, but heavy and bulky for backpacking.

Rankings by Use Case

Other Reddit Recommendations:

FAQs