Featuring a women's specific shape that is wider at the hip and narrower at the shoulder and an R-value over 6, the 10cm thick EtherLightXT Extreme air mat redefines lightweight sleeping comfort for winter adventures around the globe. Sea to Summit's Air Sprung Cells are the reason you will sleep better on this air mat. Each Air Sprung Cell deforms independently and allows the mat to conform to your body shape. This provides support and comfort by more evenly dispersing pressure across the mat's surface. For the extra thick (XT) EtherLight design, many TPU loops are used to connect the top and bottom fabric layers to the Air Sprung Cell dot weld pattern. These loops allow the top and bottom layers to be positioned further apart which creates larger pockets of air when inflated,perfect for side sleepers. This design also requires less fabric overall which means great stability and comfort for less weight. Dual-density layers of THERMOLITE insulation fill the Air Sprung Cells and work together to prevent convective heat transfer and boost warmth while remaining lightweight and packable. When the mercury drops, the EtherLightXT Extreme Women's 6.3 (unisex 6.2) ASTM R-value will keep you cushioned and insulated from the cold hard lumps and bumps beneath.
Featuring a women's specific shape that is wider at the hip and narrower at the shoulder and an R-value over 6, the 10cm thick EtherLightXT Extreme air mat redefines lightweight sleeping comfort for winter adventures around the globe. Sea to Summit's Air Sprung Cells are the reason you will sleep better on this air mat. Each Air Sprung Cell deforms independently and allows the mat to conform to your body shape. This provides support and comfort by more evenly dispersing pressure across the mat's surface. For the extra thick (XT) EtherLight design, many TPU loops are used to connect the top and bottom fabric layers to the Air Sprung Cell dot weld pattern. These loops allow the top and bottom layers to be positioned further apart which creates larger pockets of air when inflated,perfect for side sleepers. This design also requires less fabric overall which means great stability and comfort for less weight. Dual-density layers of THERMOLITE insulation fill the Air Sprung Cells and work together to prevent convective heat transfer and boost warmth while remaining lightweight and packable. When the mercury drops, the EtherLightXT Extreme Women's 6.3 (unisex 6.2) ASTM R-value will keep you cushioned and insulated from the cold hard lumps and bumps beneath.
There are no live offers for Sea to Summit Ether Light XT Extreme Womens Sleeping Mat Large right now. The all-time low we recorded was $226.00 on 28 May 2026. Set a price alert to hear when it's back in stock.
Prices last updated 1 Sept 2026.
Sea to Summit Ether Light XT Extreme Womens Sleeping Mat Large
Featuring a women's specific shape that is wider at the hip and narrower at the shoulder and an R-value over 6, the 10cm thick EtherLightXT Extreme air mat redefines lightweight sleeping comfort for winter adventures around the globe. Sea to Summit's Air Sprung Cells are the reason you will sleep better on this air mat. Each Air Sprung Cell deforms independently and allows the mat to conform to your body shape. This provides support and comfort by more evenly dispersing pressure across the mat's surface. For the extra thick (XT) EtherLight design, many TPU loops are used to connect the top and bottom fabric layers to the Air Sprung Cell dot weld pattern. These loops allow the top and bottom layers to be positioned further apart which creates larger pockets of air when inflated,perfect for side sleepers. This design also requires less fabric overall which means great stability and comfort for less weight. Dual-density layers of THERMOLITE insulation fill the Air Sprung Cells and work together to prevent convective heat transfer and boost warmth while remaining lightweight and packable. When the mercury drops, the EtherLightXT Extreme Women's 6.3 (unisex 6.2) ASTM R-value will keep you cushioned and insulated from the cold hard lumps and bumps beneath.
Featuring a women's specific shape that is wider at the hip and narrower at the shoulder and an R-value over 6, the 10cm thick EtherLightXT Extreme air mat redefines lightweight sleeping comfort for winter adventures around the globe. Sea to Summit's Air Sprung Cells are the reason you will sleep better on this air mat. Each Air Sprung Cell deforms independently and allows the mat to conform to your body shape. This provides support and comfort by more evenly dispersing pressure across the mat's surface. For the extra thick (XT) EtherLight design, many TPU loops are used to connect the top and bottom fabric layers to the Air Sprung Cell dot weld pattern. These loops allow the top and bottom layers to be positioned further apart which creates larger pockets of air when inflated,perfect for side sleepers. This design also requires less fabric overall which means great stability and comfort for less weight. Dual-density layers of THERMOLITE insulation fill the Air Sprung Cells and work together to prevent convective heat transfer and boost warmth while remaining lightweight and packable. When the mercury drops, the EtherLightXT Extreme Women's 6.3 (unisex 6.2) ASTM R-value will keep you cushioned and insulated from the cold hard lumps and bumps beneath.
Last updated at 09/01/2026 01:00:22
Sea to Summit Ether Light XT Extreme ASC Sleeping Mat for Women, Tradewinds, Regular
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Sea to Summit Comfort Plus s.i. Mat
Free delivery between Tue – Fri
Sea to Summit Ether Light XT Extreme Mat Womens - Sleeping mat
Delivery $128.00
Sea to Summit EtherLight XT Extreme Women's Insulated Sleeping Mat Regular Black
Delivery between 3–11 Sept $10
Sea to Summit EtherLight XT Extreme Women's Insulated Sleeping Mat Large Black
Delivery $9.90
Sea to Summit EtherLight XT Extreme Women's Insulated Sleeping Mat Large Black
Delivery $9.90
Sea to Summit EtherLight XT Extreme Women's Insulated Sleeping Mat Large Black
Delivery $9.90
Sea to Summit EtherLight XT Extreme Women's Insulated Sleeping Mat - Large - Black
Delivery $11.18
Sea to Summit EtherLight XT Extreme Women's Insulated Sleeping Mat Large Black
Delivery $9.90
Sea to Summit EtherLight XT Extreme Women's Insulated Sleeping Mat - Large - Black
Free delivery between 3–10 Sept
originally posted on REI
I'm mostly a side sleeper but spend a lot of time moving around in different sleeping positions during the night. This pad was so ridiculously comfortable that it felt like my bed mattress at home - I've never been this comfy backpacking before! I also didn't realise how much of a difference a pad with an R-rating of 3.5 makes (my last pad was only 1.5): for once, I did not get cold during the night (on one particularly chilly Fall Sierra weekend, we woke with ice on our tent). I'm only 5'4 so the women's regular pad was plenty long enough for me and, being 6" shorter than my last pad, afforded me a little extra room for gear at my feet. Not too heavy, either, especially considering the pros of a good night's sleep compared to the lighter and thinner/lower R-value ... MoreI'm mostly a side sleeper but spend a lot of time moving around in different sleeping positions during the night. This pad was so ridiculously comfortable that it felt like my bed mattress at home - I've never been this comfy backpacking before! I also didn't realise how much of a difference a pad with an R-rating of 3.5 makes (my last pad was only 1.5): for once, I did not get cold during the night (on one particularly chilly Fall Sierra weekend, we woke with ice on our tent). I'm only 5'4 so the women's regular pad was plenty long enough for me and, being 6" shorter than my last pad, afforded me a little extra room for gear at my feet. Not too heavy, either, especially considering the pros of a good night's sleep compared to the lighter and thinner/lower R-value pads. Inflating was easy; packing back into the stuff sack with the inflation bag stumped me on my first trip, but I had it down pat by my 2nd trip (fold the inflation bag first into 3rds lengthwise, then fold until it's small enough to fit into the end of the stuff sack, THEN fold and roll the pad and pack it in the other end of the stuff sack). Summary: brilliant pad and worth every cent! Hope it holds up.
originally posted on seatosummit.com
After 30 nights of use, leaks started developing on the rims of the circular dimple buttons, or what some people call the spot welds. The first night it started leaking, it took 9 hours for my butt to touch the ground. The second night it took 3 hours. I tried searching for the leak 3 separate times, finding and patching only 1 leak each time. But after fixing the 3 leaks, it's still leaking somewhere and it's now accelerated. Now it only takes 1 hour for my butt to touch the ground, so it seems that the problem has become worse. I've also run out of the 3 large rectangular patches that came with the mattress. Only the smaller circular patches remain but they're too small to cover the dimples. So I've given up on repairing.Although the first 30 nights sleeping on ... MoreAfter 30 nights of use, leaks started developing on the rims of the circular dimple buttons, or what some people call the spot welds. The first night it started leaking, it took 9 hours for my butt to touch the ground. The second night it took 3 hours. I tried searching for the leak 3 separate times, finding and patching only 1 leak each time. But after fixing the 3 leaks, it's still leaking somewhere and it's now accelerated. Now it only takes 1 hour for my butt to touch the ground, so it seems that the problem has become worse. I've also run out of the 3 large rectangular patches that came with the mattress. Only the smaller circular patches remain but they're too small to cover the dimples. So I've given up on repairing.Although the first 30 nights sleeping on this mattress was really comfortable due to it being deeper than most other brands.
originally posted on backcountry.com
I'm torn on picking a star review. Maybe I should have realized from the r rating that it would not be warm enough. But it is so cold that it is completely useless to me without another piece of gear (thermarest z-lite foam pad) which makes me want to give it one star. The description talks about its insulation so I thought it would be at least somewhat functional.You can feel the cold are beneath you. I started noticing it when temperatures got into the low 50s. It was annoying but tolerable. Lower than that, it is really unpleasant. I tried putting a reflective foam pad underneath and that didn't help, still too cold. If I put the pad on top, it is warm enough. But then I start wondering why I'm using two pieces of gear instead of just buying a better inflatable ... MoreI'm torn on picking a star review. Maybe I should have realized from the r rating that it would not be warm enough. But it is so cold that it is completely useless to me without another piece of gear (thermarest z-lite foam pad) which makes me want to give it one star. The description talks about its insulation so I thought it would be at least somewhat functional.You can feel the cold are beneath you. I started noticing it when temperatures got into the low 50s. It was annoying but tolerable. Lower than that, it is really unpleasant. I tried putting a reflective foam pad underneath and that didn't help, still too cold. If I put the pad on top, it is warm enough. But then I start wondering why I'm using two pieces of gear instead of just buying a better inflatable pad. I've talked to someone else who also felt the cold air when he tried it, so it's not just me. If you only backpack in very warm temperatures this pad would be fine but otherwise, it's not worth it.Also, it is noisy. It sounds like inner tubes rubbing against each other whenever you move on it.Temperate aside, it is very light and quite cushy. I really wanted to like this pad but it is not warm enough for the Pacific Northwest, even in the summer.
| Sea to Summit Ether Light XT Extreme Women's | R |
| R-value | 6.3 |
| Thickness (cm) | 10.0 |
| Length (cm) | 168 |
| Weight (grams) | 685 |
Sea to Summit Ether Light XT Extreme ASC Sleeping Mat for Women, Tradewinds, Regular
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Sea to Summit Comfort Plus s.i. Mat
Free delivery between Tue – Fri
Sea to Summit Ether Light XT Extreme Mat Womens - Sleeping mat
Delivery $128.00
Sea to Summit EtherLight XT Extreme Women's Insulated Sleeping Mat Regular Black
Delivery between 3–11 Sept $10
Sea to Summit EtherLight XT Extreme Women's Insulated Sleeping Mat Large Black
Delivery $9.90
I'm mostly a side sleeper but spend a lot of time moving around in different sleeping positions during the night. This pad was so ridiculously comfortable that it felt like my bed mattress at home - I've never been this comfy backpacking before! I also didn't realise how much of a difference a pad with an R-rating of 3.5 makes (my last pad was only 1.5): for once, I did not get cold during the night (on one particularly chilly Fall Sierra weekend, we woke with ice on our tent). I'm only 5'4 so the women's regular pad was plenty long enough for me and, being 6" shorter than my last pad, afforded me a little extra room for gear at my feet. Not too heavy, either, especially considering the pros of a good night's sleep compared to the lighter and thinner/lower R-value ... MoreI'm mostly a side sleeper but spend a lot of time moving around in different sleeping positions during the night. This pad was so ridiculously comfortable that it felt like my bed mattress at home - I've never been this comfy backpacking before! I also didn't realise how much of a difference a pad with an R-rating of 3.5 makes (my last pad was only 1.5): for once, I did not get cold during the night (on one particularly chilly Fall Sierra weekend, we woke with ice on our tent). I'm only 5'4 so the women's regular pad was plenty long enough for me and, being 6" shorter than my last pad, afforded me a little extra room for gear at my feet. Not too heavy, either, especially considering the pros of a good night's sleep compared to the lighter and thinner/lower R-value pads. Inflating was easy; packing back into the stuff sack with the inflation bag stumped me on my first trip, but I had it down pat by my 2nd trip (fold the inflation bag first into 3rds lengthwise, then fold until it's small enough to fit into the end of the stuff sack, THEN fold and roll the pad and pack it in the other end of the stuff sack). Summary: brilliant pad and worth every cent! Hope it holds up.
After 30 nights of use, leaks started developing on the rims of the circular dimple buttons, or what some people call the spot welds. The first night it started leaking, it took 9 hours for my butt to touch the ground. The second night it took 3 hours. I tried searching for the leak 3 separate times, finding and patching only 1 leak each time. But after fixing the 3 leaks, it's still leaking somewhere and it's now accelerated. Now it only takes 1 hour for my butt to touch the ground, so it seems that the problem has become worse. I've also run out of the 3 large rectangular patches that came with the mattress. Only the smaller circular patches remain but they're too small to cover the dimples. So I've given up on repairing.Although the first 30 nights sleeping on ... MoreAfter 30 nights of use, leaks started developing on the rims of the circular dimple buttons, or what some people call the spot welds. The first night it started leaking, it took 9 hours for my butt to touch the ground. The second night it took 3 hours. I tried searching for the leak 3 separate times, finding and patching only 1 leak each time. But after fixing the 3 leaks, it's still leaking somewhere and it's now accelerated. Now it only takes 1 hour for my butt to touch the ground, so it seems that the problem has become worse. I've also run out of the 3 large rectangular patches that came with the mattress. Only the smaller circular patches remain but they're too small to cover the dimples. So I've given up on repairing.Although the first 30 nights sleeping on this mattress was really comfortable due to it being deeper than most other brands.
I'm torn on picking a star review. Maybe I should have realized from the r rating that it would not be warm enough. But it is so cold that it is completely useless to me without another piece of gear (thermarest z-lite foam pad) which makes me want to give it one star. The description talks about its insulation so I thought it would be at least somewhat functional.You can feel the cold are beneath you. I started noticing it when temperatures got into the low 50s. It was annoying but tolerable. Lower than that, it is really unpleasant. I tried putting a reflective foam pad underneath and that didn't help, still too cold. If I put the pad on top, it is warm enough. But then I start wondering why I'm using two pieces of gear instead of just buying a better inflatable ... MoreI'm torn on picking a star review. Maybe I should have realized from the r rating that it would not be warm enough. But it is so cold that it is completely useless to me without another piece of gear (thermarest z-lite foam pad) which makes me want to give it one star. The description talks about its insulation so I thought it would be at least somewhat functional.You can feel the cold are beneath you. I started noticing it when temperatures got into the low 50s. It was annoying but tolerable. Lower than that, it is really unpleasant. I tried putting a reflective foam pad underneath and that didn't help, still too cold. If I put the pad on top, it is warm enough. But then I start wondering why I'm using two pieces of gear instead of just buying a better inflatable pad. I've talked to someone else who also felt the cold air when he tried it, so it's not just me. If you only backpack in very warm temperatures this pad would be fine but otherwise, it's not worth it.Also, it is noisy. It sounds like inner tubes rubbing against each other whenever you move on it.Temperate aside, it is very light and quite cushy. I really wanted to like this pad but it is not warm enough for the Pacific Northwest, even in the summer.
Outdoor store employee. I've been using my regular woman's etherlight pad for a couple of years. I do a lot of winter backpacking and wanted something warmer. I'm not a tall person (male,5'7) and a side sleeper who turns alot. So the women's pads work great for me. They fit in my tent and in the back of my truck so it's super versatile. I've had to patch mine several times and it was great still. I did have to retire it recently but customer service made it super easy to replace.
I have a R4.2 ultralight for bikepacking but needed a thicker alpine rated mat for Tasmania. Firstly I'm comparing with an ultralight and not a similar like for like. Bulk - I'm using this for hiking so bulk isn't as important than for bikepacking for me. I also don't stuff the mat but fold it to use as the padding of my frameless pack. I didn't find this bulky at all when used this way. Weight was not an issue either. Ease of set up - This was brilliant and quick using the blow up sack. I feel good knowing I'm blowing less moisture into the mat. Deflating and pushing out the air was very quick and easy. Comfort - Very thick but best not to inflate it completely, a bit less is more comfortable. Able to sleep on side well. Noise - Only downside, it has a slight ... MoreI have a R4.2 ultralight for bikepacking but needed a thicker alpine rated mat for Tasmania. Firstly I'm comparing with an ultralight and not a similar like for like. Bulk - I'm using this for hiking so bulk isn't as important than for bikepacking for me. I also don't stuff the mat but fold it to use as the padding of my frameless pack. I didn't find this bulky at all when used this way. Weight was not an issue either. Ease of set up - This was brilliant and quick using the blow up sack. I feel good knowing I'm blowing less moisture into the mat. Deflating and pushing out the air was very quick and easy. Comfort - Very thick but best not to inflate it completely, a bit less is more comfortable. Able to sleep on side well. Noise - Only downside, it has a slight crinkling noise but not too bad. My fellow campers said they could hear 'someone' move but that it wasn't annoying.
This pad is really comfortable, I like how it's a bit wider than some and is a little squishier. I don't find it particularly noisy, I have a NeoAir as well which is a lot louder. I have yet to hear a sleeping pad that's any quieter, but of course it's louder than a bed! I almost didn't buy it because of the noise concerns but I'm glad I did and here to say you should try it to! I wonder if there is an older or different construction that's making some of these pads louder than others? Mine was bought summer 2023 from REI.If anyone is looking for a NeoAir comparison, this pad is of course heavier but I'd say it's much more comfortable and feels like like sleeping on an pool floaty (not a bad thing, just the price you pay for weight savings). The fabric is also ... MoreThis pad is really comfortable, I like how it's a bit wider than some and is a little squishier. I don't find it particularly noisy, I have a NeoAir as well which is a lot louder. I have yet to hear a sleeping pad that's any quieter, but of course it's louder than a bed! I almost didn't buy it because of the noise concerns but I'm glad I did and here to say you should try it to! I wonder if there is an older or different construction that's making some of these pads louder than others? Mine was bought summer 2023 from REI.If anyone is looking for a NeoAir comparison, this pad is of course heavier but I'd say it's much more comfortable and feels like like sleeping on an pool floaty (not a bad thing, just the price you pay for weight savings). The fabric is also slightly softer if you're sleeping outside your sleeping bag. I like having both for different activities, but would say if I could only have one the slight weight gain on this is worth it for the comfort.
I bought this mattress because I have disabilities which make sitting for long periods of time very painful, and I needed to lie down during long stopovers on a series of long haul flights. I did hours of research on the internet before ordering this particular mattress, reading reviews and watching videos from all over the world. Eventually I narrowed down my search to the Sea to Summit Women's Etherlite sleep pad. This mattress is fantastic, so easy to inflate and very comfortable for my body, even though I have spine, neck, pelvis and shoulder problems. It was the perfect thing to take in my hand luggage to enable me to rest, taking up such little space and only half a kilo in weight. Although it was not cheap I am really happy with it and hopefully I can use it ... MoreI bought this mattress because I have disabilities which make sitting for long periods of time very painful, and I needed to lie down during long stopovers on a series of long haul flights. I did hours of research on the internet before ordering this particular mattress, reading reviews and watching videos from all over the world. Eventually I narrowed down my search to the Sea to Summit Women's Etherlite sleep pad. This mattress is fantastic, so easy to inflate and very comfortable for my body, even though I have spine, neck, pelvis and shoulder problems. It was the perfect thing to take in my hand luggage to enable me to rest, taking up such little space and only half a kilo in weight. Although it was not cheap I am really happy with it and hopefully I can use it during my travels on many occasions, I think it's really good value for the price. Anaconda had the best price I could find anywhere. They delivered it to me in a very short amount of time. I was pleasantly surprised by the space for hips and for turning back and forth. I highly recommend this mattress!
I'd pretty much given up on ground camping and was looking into purchasing a hammock tent to provide some relief to my hips when sleeping. Normally I spend nights restless and in pain around hips and back. As a last effort I purchased this mat on recommendation from my friend. Easily the best sleep I've had camping. I sleep on back and sides and was comfortable in every position. So easy to blow up and pack down. I was in 0°C and didn't have any cold coming up from the floor so the insulation was really effective too. I went for the long version (I'm 178cm tall) and it was just the right size.
I am a 5 foot 10 inches tall female side sleeper who moves around a lot in my sleep and found the Etherlight XT WL to be the most comfortable sleeping mat I have ever owned. It is easy to inflate & being tapered, fits better in the tent when there are 2 of us. It has reduced noise but still does make a little bit of rustling sounds when I am changing my position. Love that the pillow can be "locked" to the mattress as well. I am based in New Zealand where the weather can range from freezing cold to very warm. I would be very careful with making sure the ground is free from any lumps & bumps under my tent OR I put some spare clothes between the mat and my tent floor for extra protection & warmth. Reviewed on 25 May 2024.
I use this sleeping pad for backpacking and bicycle camping. It is very comfortable, but a little noisy, but my husband and I have gotten used to it. It does take a little longer to blow up (more like 6-8 bags) but the size and comfort is worth it. I love the two way air valve so that as you're inflating it, the air you have already put in it stays put. To deflate, just open the valve and the air whooshes out. I have used it in 30 degree weather and have had no cold penetration through the pad. My only complaint is the pillow lock system. I bought a Aeros Ultralight pillow and applied the sticky Velcro-type pieces. It worked great for about three trips. But now the sticky pieces have traveled all around and the pillow won't stay on the pad. I don't know if this is a ... MoreI use this sleeping pad for backpacking and bicycle camping. It is very comfortable, but a little noisy, but my husband and I have gotten used to it. It does take a little longer to blow up (more like 6-8 bags) but the size and comfort is worth it. I love the two way air valve so that as you're inflating it, the air you have already put in it stays put. To deflate, just open the valve and the air whooshes out. I have used it in 30 degree weather and have had no cold penetration through the pad. My only complaint is the pillow lock system. I bought a Aeros Ultralight pillow and applied the sticky Velcro-type pieces. It worked great for about three trips. But now the sticky pieces have traveled all around and the pillow won't stay on the pad. I don't know if this is a pillow or a pad problem but that was very disappointing. But ,the pad has worked great so far, and packs up small, so five stars for the pad, but one star for the pillow system.
| Sea to Summit Ether Light XT Extreme Women's | R |
| R-value | 6.3 |
| Thickness (cm) | 10.0 |
| Length (cm) | 168 |
| Weight (grams) | 685 |
