I have been positively surprised by this products insulation properties. Thought the theory presented about the internal airflow with the cold air being kept to the ground and the air heated up being circulated at the upper part of the sleeping pad would be mostly marketing, but it appears that it actually works. Used it for a weeks trip in tent so far and has been used in combination with a ridge rest sleeping pad without any signs of the cold coming through. Similar in warmth to the downfilled Exped product, but have been very disappointed with the Exped product where I had to sleeping pads exploding the same day at 4500 m elevation in Nepal without any mechanical impact. Talking to the guide at the same trip, he mentioned that the same thing had happened to 15 ... MoreI have been positively surprised by this products insulation properties. Thought the theory presented about the internal airflow with the cold air being kept to the ground and the air heated up being circulated at the upper part of the sleeping pad would be mostly marketing, but it appears that it actually works. Used it for a weeks trip in tent so far and has been used in combination with a ridge rest sleeping pad without any signs of the cold coming through. Similar in warmth to the downfilled Exped product, but have been very disappointed with the Exped product where I had to sleeping pads exploding the same day at 4500 m elevation in Nepal without any mechanical impact. Talking to the guide at the same trip, he mentioned that the same thing had happened to 15 out of 16 Exped down filled sleeping pads that he had bought, so would discourage anyone from purchasing that product if a robust sleeping pad is needed. Have had Therm-a-rest products for many years and the only weakness detected so far is that the glue is a little heat sensitive, so destroyed a couple of matresses when sleeping on a floor heated by an open fire in a traditional housing in Korea.

Comfortable and war, but pump sack could use

Comfortable and very warm (though we only used the pads in California's Mediterranean climate in late December this time, I expect that they will do well in snow). WingLock valve is easy to use. Inflation via pump sack could be ibetter, as it takes longer to fill the pad, compared to the Nemo Tensor that we also own. While it takes 3-4 single puffs (meaning one puff to fill the sack each time) for Nemo Tensor, it took several repeats (with two breaths for each fill - totaling 15-16 puffs) for NeoAir. Not sure this is due to thinner pump sack than Nemo's or not. Nemo Tensor's pump sack also has a firm soft rubber at the opening, which is easy to hold the sack and makes the sack less collapsible between each breath (a single good puff fills up the Nemo sack). ... MoreComfortable and very warm (though we only used the pads in California's Mediterranean climate in late December this time, I expect that they will do well in snow). WingLock valve is easy to use. Inflation via pump sack could be ibetter, as it takes longer to fill the pad, compared to the Nemo Tensor that we also own. While it takes 3-4 single puffs (meaning one puff to fill the sack each time) for Nemo Tensor, it took several repeats (with two breaths for each fill - totaling 15-16 puffs) for NeoAir. Not sure this is due to thinner pump sack than Nemo's or not. Nemo Tensor's pump sack also has a firm soft rubber at the opening, which is easy to hold the sack and makes the sack less collapsible between each breath (a single good puff fills up the Nemo sack). Unfortunately, we now have three NeoAir Xtherm MAX (purchased this time) and one Nemo Tensor, and the total time to inflate all four pads is long. To be fair, attaching and removing pump sack is a lot easier with NeoAir Xtherm than Nemo Tensor.

Excellent

This sleeping pad is amazing! The girlfriend and I took a trip to Northern Michigan and it did not disappoint.I've always had sub par equipment I tried to use but was sick of bulky equipment that didn't work. Coming from that background when this arrived I didn't believe it was in the box I thought it was empty this product is so light and small it should be illegal the quality feels superior to my buddies Nemo and did not deflate or fail on me like pads I've used in the past. The pump sack is usable, surprisingly not horrible to inflate took around 10-12 pumps on average i believe. I'm 5'11 235lbs so I'm no lightweight and I highly recommend the wide. I himmed and hawed on this pad for months and I bought the now after this trip Fiancée a ring so I figured I could ... MoreThis sleeping pad is amazing! The girlfriend and I took a trip to Northern Michigan and it did not disappoint.I've always had sub par equipment I tried to use but was sick of bulky equipment that didn't work. Coming from that background when this arrived I didn't believe it was in the box I thought it was empty this product is so light and small it should be illegal the quality feels superior to my buddies Nemo and did not deflate or fail on me like pads I've used in the past. The pump sack is usable, surprisingly not horrible to inflate took around 10-12 pumps on average i believe. I'm 5'11 235lbs so I'm no lightweight and I highly recommend the wide. I himmed and hawed on this pad for months and I bought the now after this trip Fiancée a ring so I figured I could splurge and buy something for myself too lol. I'm glad I did kept me warm on 8° days and I feel like you could sleep directly on ice with this pad I don't believe in many products that cost allot of money but this one I do. If your on the fence about this pad order it my only regret is I didn't have it sooner my back would have thanked me!

High quality product with a few drawbacks

June 2022:I’ve slept on this sleeping pad two nights so far camping in Breckenridge, CO and plan for another night in Telluride this weekend. It has kept me warm during the nights and I genuinely don’t feel any cold from the ground coming up through the pad. So it does its job very well!My reason for 4/5 stars is for three factors:1st, the sleeping pad is narrow. I slid off it a couple times during the night and woke up cold because nothing was between my sleeping bag and the ground. Rolled back onto the pad and I was warm again. I am a 5’5”, 140 lb, slim/athletic build woman and have the Regular Size pad.2nd: this sleeping pad crinkles and makes a lot of noise. The sound doesn’t bother me, but I was sharing a tent with another gal and was hyper-aware of the ... MoreJune 2022:I’ve slept on this sleeping pad two nights so far camping in Breckenridge, CO and plan for another night in Telluride this weekend. It has kept me warm during the nights and I genuinely don’t feel any cold from the ground coming up through the pad. So it does its job very well!My reason for 4/5 stars is for three factors:1st, the sleeping pad is narrow. I slid off it a couple times during the night and woke up cold because nothing was between my sleeping bag and the ground. Rolled back onto the pad and I was warm again. I am a 5’5”, 140 lb, slim/athletic build woman and have the Regular Size pad.2nd: this sleeping pad crinkles and makes a lot of noise. The sound doesn’t bother me, but I was sharing a tent with another gal and was hyper-aware of the noise it made while I was rolling back onto the pad during the night (see point 1 above).3rd: Cost. If you want warmth and lightness, you must pay a pretty penny. It was worth it for me but I spent a dew weeks researching various products before finally biting the bullet.Overall I am very happy with this product because I want a light and warm item. This does the job.

I have very mixed feelings

I have very mixed feelings about this product. I've used it 6 nights now so here's my opinion:Bad: It is definitely loud. It sounds like you're opening a potato chip bag every time you move. It's also quite thin for us side sleepers to where my hip will hit the ground even if it's fully inflated. The bag to inflate is hard to get on and off, and makes me concerned that i am going to break the valve. It doesn't pack down as small as i was expecting.Good: It is very warm. Great for cold nights and anyone who tends to run cold in general. I thought i needed a warmer sleeping bag for the fall & winter but now my bag is just fine.Other notes: The first item i was sent ended up being the wrong size. The order and the box were correct, but the actual pad inside the box ... MoreI have very mixed feelings about this product. I've used it 6 nights now so here's my opinion:Bad: It is definitely loud. It sounds like you're opening a potato chip bag every time you move. It's also quite thin for us side sleepers to where my hip will hit the ground even if it's fully inflated. The bag to inflate is hard to get on and off, and makes me concerned that i am going to break the valve. It doesn't pack down as small as i was expecting.Good: It is very warm. Great for cold nights and anyone who tends to run cold in general. I thought i needed a warmer sleeping bag for the fall & winter but now my bag is just fine.Other notes: The first item i was sent ended up being the wrong size. The order and the box were correct, but the actual pad inside the box wasn't what it was supposed to be. Not sure how this happened, but it was a hassle to reach someone for a return since there was no number to call and get them to send me a prepaid shipping label. I didn't feel I should have to pay for the shipping fees since it was their mistake. The whole exchange process took about 2 weeks and I missed using it on a backpacking trip that i was looking forward to having it for.

Pad is amazing, pump sack is a joke

I just slept out for 3 nights, winter camping at about 15 degree nighttime lows. I used a tyvek sheet as my groundcloth, and then just this neoair xtherm sleeping pad and my oberon 0 degree sleeping bag (no tent). The pad kept me warm- I felt no cooling from beneath, which I'm pretty surprised about. I'm a very cold person, always struggling to stay warm, and this was some of the most pleasant cold weather camping experiences I've had. Meanwhile, I've scrapped the accompanying pump sack, as it's a complete joke. Some people comment that it doesn't stay attached- that's not usually a problem for me. However, it's a thick nylon, which is very heavy and takes up a lot of space, I don't understand why that material was selected. Even worse, it doesn't do its job - air ... MoreI just slept out for 3 nights, winter camping at about 15 degree nighttime lows. I used a tyvek sheet as my groundcloth, and then just this neoair xtherm sleeping pad and my oberon 0 degree sleeping bag (no tent). The pad kept me warm- I felt no cooling from beneath, which I'm pretty surprised about. I'm a very cold person, always struggling to stay warm, and this was some of the most pleasant cold weather camping experiences I've had. Meanwhile, I've scrapped the accompanying pump sack, as it's a complete joke. Some people comment that it doesn't stay attached- that's not usually a problem for me. However, it's a thick nylon, which is very heavy and takes up a lot of space, I don't understand why that material was selected. Even worse, it doesn't do its job - air easily squeezes through the loose-knit fabric. I try to give rapid squeezes to instead direct the air through the port, but I've tried many times and I've never successfully filled the sleeping pad with the pump sack- it just doesn't push air into the pad. I'm interested in the Blockerlite Pump Sack as it looks like it might actually direct air into the pad due to its sealed fabric nature. But I also am not willing to pay such a ridiculous price for it- what a ripoff after the accompanying one clearly fails! I'm concerned about the longevity of the pad, especially at colder temperatures- with using my breath to inflate the pad, as moisture obviously accumulates inside. I'd prefer not to continue doing that, so we'll see if I can find a better long term solution. I've got sil nylon fabric and I might just make my own ultralight, waterproof, pump sack with the current nozzle attachment for a fraction of the cost of the Blockerlite, but will hopefully work just as well. Pad deserves 5 stars but due to the pathetic pump sack I'm giving it 4.

So far I believe this is a good pad.

I should preface this by letting the reader know that this is the first insulated pad I have purchased.I tested this on two nights so far with a low between 25 F and 30 F, I did not feel any cold coming in through the bottom of my sleeping bag.At first I thought this pad might be a little loud but once I was in my sleeping bag I could not really hear it.My previous pad was 20" wide 1.5" thick, this Xtherm pad is 2.5" thick and I went with the 25" wide version and find this SIGNIFICANTLY more comfortable.It came with a pump sack (1.8 oz), stuff sack and repair kit. The bag w/ stuff sack weighs 23.8 oz. So far I like the twin lock system, however, I left the pad inflated in my tent over the day and when I came back it had lost a good amount of air and I had to ... MoreI should preface this by letting the reader know that this is the first insulated pad I have purchased.I tested this on two nights so far with a low between 25 F and 30 F, I did not feel any cold coming in through the bottom of my sleeping bag.At first I thought this pad might be a little loud but once I was in my sleeping bag I could not really hear it.My previous pad was 20" wide 1.5" thick, this Xtherm pad is 2.5" thick and I went with the 25" wide version and find this SIGNIFICANTLY more comfortable.It came with a pump sack (1.8 oz), stuff sack and repair kit. The bag w/ stuff sack weighs 23.8 oz. So far I like the twin lock system, however, I left the pad inflated in my tent over the day and when I came back it had lost a good amount of air and I had to give it about 3-4 full breaths to get it back to where it was before.I also purchased the NeoAir Micro Pump (2.2 oz w/ batteries) with it, but I'm not sure yet if it was worth it. It does not fully inflate it to my desired stiffness. It also only gets it 95% deflated and you still end up having to squeeze some air out.

So far so good

Slightly cold to the touch initially which was something new to me (coming from klymit insulated v where the fabric somehow just doesn’t feel cold to an initial touch even at -12c but was starting to not be insulated enough). Think touching a metal spoon versus a plastic one, thermal conductivity must be pretty high on the Therm-a-Rest outer fabric. At extreme cold I could see this being a problem if you need to shift around, as any expenditures of heat to warm up the material is going to be rough. That being said, 70D on the bottom definitely feels durable but I’d only personally set it in a tent or groundsheetI have the regular and find my arms slightly hang off the sides if I’m on my back, haven’t noticed this to be annoying yet but might go for the wide if so. ... MoreSlightly cold to the touch initially which was something new to me (coming from klymit insulated v where the fabric somehow just doesn’t feel cold to an initial touch even at -12c but was starting to not be insulated enough). Think touching a metal spoon versus a plastic one, thermal conductivity must be pretty high on the Therm-a-Rest outer fabric. At extreme cold I could see this being a problem if you need to shift around, as any expenditures of heat to warm up the material is going to be rough. That being said, 70D on the bottom definitely feels durable but I’d only personally set it in a tent or groundsheetI have the regular and find my arms slightly hang off the sides if I’m on my back, haven’t noticed this to be annoying yet but might go for the wide if so. I’m 5’7” and maybe 130lbs. This packs down so well and is roughly an ounce more than what the package claims but insanely light for the comfort and insulation.I’ve only had it one month but have taken it down seven nights to low 20s deg without any problem using a Katabatic 22deg flex quilt and only underwear. Plan to take it to -10 in about two weeks and will update the review then.I find I fold in thirds lengthwise then roll the mat fairly easily into the provided stack (my klymit was painful to get all the air out of) often taking care to make sure the wing lock can just gently fit between the roll so it isn’t strained weird. Time will tell if this holds up, but I’m personally skeptical of the winglock and it’s durablity unless you pack it with care.I enjoy using the pump sack but prefer my quilt in it’s provided sack so I’m trying to find a use for the pump sack so it isn’t just deadweight.As a heads up to future buyers, Therm-a-Rest is coming out with a new mattress that is supposedly warmer and lighter. I’d like to use this for every season to save money so we shall see if I can tolerate the r-value during humid/hot nights, I sleep pretty hot so I might be unlucky but will update my review accordingly

This pad is a great choice for cold weather Backpacking-Mountaineering and possibly the best

This pad is a great choice for cold weather Backpacking-Mountaineering and possibly the best, considering that it holds the best weight to insulation ratio and also being very durable due to the 70d fabric at the bottom side. Considering the above, some minor drawbacks (bellow) can be excused. I have had the pad in all its versions, with the Classic valve, the Winglock valve and now the Nxt. Have spent many nights on the mountain on it and has never failed or had a puncture ( I always sleep in a tent with a groundsheet ).Comparing it with the previous version with the Winglock valve, the comfort is better, the weight has marginally increased (+20g), the insulation has marginally increased; the upper fabric provides less grip.Specifically:-More Slippery to the ... MoreThis pad is a great choice for cold weather Backpacking-Mountaineering and possibly the best, considering that it holds the best weight to insulation ratio and also being very durable due to the 70d fabric at the bottom side. Considering the above, some minor drawbacks (bellow) can be excused. I have had the pad in all its versions, with the Classic valve, the Winglock valve and now the Nxt. Have spent many nights on the mountain on it and has never failed or had a puncture ( I always sleep in a tent with a groundsheet ).Comparing it with the previous version with the Winglock valve, the comfort is better, the weight has marginally increased (+20g), the insulation has marginally increased; the upper fabric provides less grip.Specifically:-More Slippery to the touch fabric on the upper side, these might cause issues when sleeping on inclined ground, but cannot confirm this since I haven't used it on the field yet.-The Winglock valve is a very practical valve with only drawback that it is bulky when the pad is packed.-Lighter one tone grey colour compared to the darker two tone of the previous versions. Preferred the duller two tone grey of the previous version but that is a personal preference.-The problem with the pump sack remains. It is not seam sealed, therefore after some use, it starts to lose more air from the seams than it does when new. This results in an increase in the the time it takes to inflate the pad: 6-7 full pump sacks when new, 10+ after some use. You can always seam seal the the seams yourself and this will improve the effectiveness of the pump sack significantly. However because of the construction of the seams a full seam seal is not possible, it will always lose air when being pushed.-The specific pad ( size R) that I received weighs 462g not 440g as stated. Another one a friend got, weighs 458g. The previous version with the Winglock valve that owned weighted 440g. (Size R).-The increase in thickness ( now at 7.6cm ) is welcome. Now you can seat on it and you will not touch the ground for an instant as with the previous version at 6.4cm thickness. When laying on the mat you can also increase the comfort of the pad since the extra thickness allows to use it with less air.-The increase in R-value is also welcome. However the previous insulation value at 6.9 has been more than adequate even when sleeping on snow.-The noise of the pad did not bother me at all, there is slight improvement in the new version. I think that this whole matter with the pad being noisy is overrated.

so worth it, best sleep while rough camping ever!

I never thought I needed an inflatable sleeping pad, but this makes such a world of difference, I'm so glad I have it now! I've been on three camping trips since purchasing the Therm-a-Rest NeoAir Xtherm MAX Sleeping Pad. All of them were under cold, wet, muddy/sandy conditions, with long hard days that strain your muscles to the breaking point. I was so surprised to find that the sleeping pad not only kept me super warm (the ground froze overnight), but it was so comfortable that my muscles actually relaxed and recovered overnight!I'm 5'2", so this pad is luxuriously large for me, with extra room for my dog to snuggle on a corner while I sleep. I normally sleep on my side, but had to switch a lot from side to side and over to my back to ease the pain from a back ... MoreI never thought I needed an inflatable sleeping pad, but this makes such a world of difference, I'm so glad I have it now! I've been on three camping trips since purchasing the Therm-a-Rest NeoAir Xtherm MAX Sleeping Pad. All of them were under cold, wet, muddy/sandy conditions, with long hard days that strain your muscles to the breaking point. I was so surprised to find that the sleeping pad not only kept me super warm (the ground froze overnight), but it was so comfortable that my muscles actually relaxed and recovered overnight!I'm 5'2", so this pad is luxuriously large for me, with extra room for my dog to snuggle on a corner while I sleep. I normally sleep on my side, but had to switch a lot from side to side and over to my back to ease the pain from a back injury. The pad stayed put, was comfortable in all positions, and I woke up more rested than I've ever been in my tent.The pad also held its air really well. On one trip, I kept the same base camp for four days, and the temperature swung from below freezing at night to mid-60s during the day, but after filling the pad on day one I never needed to top it off.