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Sea to Summit

Sea to Summit Ether Light XT Extra-Thick Insulated Air Mattress, Tapered - Regular (72 x 21.5 x 4 inches)

    • Based on 202 reviews
Condition: New
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Availability: In Stock.
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Arrives Sunday, Jun 9
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Style: Tapered - Regular (72 X 21.5 X 4 Inches)


Features

  • Extra-thick 4-inch, lightweight air mattress provides a plush sleeping experience for 3-season (3.2 R-Value) backpacking, camping, and bike touring
  • Single-layer Air Sprung Cell construction mimics a spring mattress, using flexible loops to create large air pockets that are ideal for side sleepers
  • Multi-function valve for fast inflation in just a few breaths (using integrated Airstream Pumpsack), one-way deflation for quick packup, and fine-tuning of air pressure
  • Insulated pad features high-loft fiberfill and reflective fabric, to prevent heat loss and radiate heat back during sleep; non-slip 30D/40D nylon face fabric is durable and quiet
  • Tapered - Regular size measures 72 x 21.5 x 4 inches, packs to 4.5 x 9.5 inches, weighs 1.1 pounds; includes stuff sack, field repair kit, and PillowLock patches for securing a Sea to Summit pillow to mat

Product Dimensions: 72 x 21.5 x 4 inches


Item Weight: 1.1 pounds


Manufacturer: Sea to Summit


Country of Origin: Taiwan


Item model number: AMELXTINSTR


Date First Available: February 13, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Best light weight mat I have used
Style: Rectangular - Regular (72 X 25 X 4 Inches)
Very clever design -- you inflate easily by compressing a light weight bag looks like a plastic shopping bag (but much better quality). I sleep very well on this mat and so the money I paid was worth it!
Reviewed in the United States on November 21, 2022 by William M.
    • Need a mat that will stay blown up ALL night? This is your mat!!!
Style: Tapered - Regular (72 X 21.5 X 4 Inches)
Took this on a 3 N /4 Day backpacking trip and it rocked ! Stayed blown up! Easy to blow up! I would get the rectangle if you are a side or belly sleeper so you can move more than the mummy version…..just FYI CC
Reviewed in the United States on November 3, 2022 by Craig colby
    • Happy Side Sleeper
Style: Tapered - Regular (72 X 21.5 X 4 Inches)
I’m 5’9” and 200lbs, and I needed a lightweight backpacking sleep mat that was actually comfortable for my strong lady body. This one checks all the boxes. It’s quick and easy to inflate, lightweight, takes up little space when packed, and comfortable. My only complaint, if I were going to complain, is that it’s a little noisy when you are moving around. Such is life on an air mattress. ... show more
Reviewed in the United States on August 19, 2022 by Alicia
    • So comfortable!
Style: Rectangular - Regular (72 X 25 X 4 Inches)
Most comfortable mat I have ever owned and I have used a lot of mats! I inflate till about 85-95% full to get firmness I like. Super comfy and highly recommend. I have only had out in a couple of 4 day trips, so not enough use to accurately rate durability/quality, but so far so good.
Reviewed in the United States on August 20, 2022 by Donna Raquel
    • Disappointed
Style: Tapered - Large (78 x 25 x 4 inches)
Love the size and the light weight. Love how fast it blows up. A little disappointed in the comfort. It is good, but My big Agnes insulated Q core is more comfortable (I am a side sleeper) but it is also much heavier. Disappointed in the durability. Used it on one, 5 day campout. When I went to use it this year, there is a slow leak somewhere. It was not abused and I am very careful with using my gear. For the price, I expected it to last much longer ... show more
Reviewed in the United States on July 9, 2022 by Tim
    • Great for Men (and dogs) too!
Style: Women's Large (72 x 25 x 4 inches)
TL;DR - Ultralight, ultra comfortable, ultra strong! Increased r-value and less weight than the mens. Not annoying like Thermarest. Medium sized dog-proof. Would buy again! I'll have to add photos later but as a 5'9" male who sleeps cold, I appreciated the extra overall width and increased r-value! I am an inverted triangle body shape with pretty wide shoulders and love that the mat stays wide even down towards my hips. Lots of room to roll around on as an active sleeper! It also isn't very crinkly or loud. Definitely not enough to disturb or irritate me in the middle of the night. I think it was also just barely lighter weight than the men's version as well. I will say it does take up most of the floor space in my Copper Spur UL1. But with the 4" of padding I've never had a problem hitting my head or feet on the tent while sleeping. This is hands down the best pad I have ever used! It is also bomb proof as my dog had moved all over it getting comfortable and I have had no issues with holes or punctures! ... show more
Reviewed in the United States on July 24, 2021 by Robert
    • Luxury comfort doesn’t have to weigh a ton.
Style: Rectangular - Regular (72 X 25 X 4 Inches)
Comfortable and knowing it is thicker than its competitors provide a little more assurance of its durability. One thing of note, it is rather noisy during tossing and turning, but for the comfort level, I still would recommend this sleeping pad.
Reviewed in the United States on June 15, 2022 by ffes
    • Mediocre
Style: Rectangular - Regular (72 X 25 X 4 Inches)
I had high expectations given the brand and price, but was disappointed by how loud the material is when you adjust your body at night. If you're like me and toss/turn, the material makes a crinkly sound and your partner will not be thrilled.
Reviewed in the United States on September 28, 2022 by Alexander Stoute

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