I have the older orange model, 20" X 72" X 1.5" thick- I think it's called the prolite 4 but not sure; it weighs 24.5 oz in the stuff sack. These newer lighter mats do not really self- inflate like the earlier t-rest mats, but c'mon, stop complaining about it. The t-rest I replaced was 1" thick and weighs the same as the 1.5" thick prolite model. Yeah, the old model self-inflated much more but which would you rather have? You can't have it all in backpacking! Anyway, great product for a great nite's sleep.

Thinner than the older orange version, though they both claim to be 1 inch.

Still, incredibly comfortable, super-lightweight and low-bulk. I love how far inflatable mattress tech. has come in the last ten years.

Easy 5 stars, no cons.

Slowly bringing my base pack down and made the conversion from the ultra bulky (ultra dependable) closed cell pad to this little guy after making the mistake of trying out a non-inflatable with great disatisfaction. This pad is super light, extremely comfortable, and if you have a repair kit, totally bombproof. I use this with a quilt and find that the material is not at all harsh against my skin. Also, I am 6'2 and use a regular and find that I am not at all uncomfortable or finding pressure points. As long as you use a stuff sack pillow with your head off the pad. Great buy.

That's right, the pad doesn't blow, and niether do you. There's nothing worse than a long day on the trail, only to finish it up by having to blow up your sleeping pad. I've used this pad for a lot of nights on the AT, it's light, packs down small, and all I have to do at the end of the day is unroll it and make sure the valve is open. By the time I'm done making dinner I can close up the valve and this pad is ready to go.

It's not as comfy as some of the inflatable pads, but for a minimalist that doesn't feel like blowing hot air at the end of the day this pad is for you.
4 stars and shame on thermarest for making me buy the stuff sack seperately.

can't give it 5 stars simply because it doesn't exactly work the way all the hype about it says it does. or maybe I got one that aint workin like it should...id hope that isnt the case...however...

I have never used a sleeping pad in any way, shape or form before this purchase. I guess I'm just old school and hard core but I always felt if you needed a sleeping pad then you might as well buy a camper or stay in hotels and out of the woods. However, I am gearing up for the AT in 2010 and figured this couldn't be a bad idea since I will spend the majority of 5-6 months sleeping on the ground. I have skimmed over many reviews of various brands and forms of sleeping pads and these thermarest seem to be the favorites. I think I remember using a cell foam pad once way back when I was a child at a church camping trip but it didn't seem to make much difference, hence never trying any others until now. I took my new thermarest (new series short version) out for a trip last week and it was great to say the least. I can comfortably sleep on the ground as is, but do have to admit it was nice to blow this puppy up and have a lil cush under my tush. I got the short version to save space and weight, but I'm all of 5'6" so its truly all I need. I can use a pack should I need more insulation under my legs in shoulder seasons. Having never used one of these I'm truly not sure how this whole 'self inflate' thing is supposed to work but I released the valve, let it set for a while and it really didn't inflate much of anything. However, a few puffs from the plenty of hot air I have in me, heh, and this thing is good to go. After an entire night of sleepinng on it I didn't notice a bit of air loss and temps were well close to freezing...so I would have to say that this is a very truly great product that I would recommend, especially since the prices aren't quite as steep as the Pro3 and 4s were. If I could roll it out and it truly inflate itself all the way without any effort from me (which truly isnt much at all to begin with so no complaint) then I'd give it 5 stars. But to me four stars IS perfect while 5 stars are for the 'extraordinary'.

hope this helps for anyone curious about the new models.

I bought this pad after some discomfort with the Exped Airmat 7.5 (always felt too narrow like I was going to fall off!)
I have about 40 nights thus far on this pad and no problems so far. Super comfy, easy to inflate and so far very durable.

I have hundreds of nights on this and not a single night of bad sleep. This pad is light, comfy and keeps you warm from frozen or cold ground.

This is a great pad. It is super packable and light for its size. I would highly recommend for backpacking even car camping.

I took this Term-a-Rest with me to the West Coast Trail and it lived up to everything a great sleeping pad should be.
Compact, lightweight, provided good cushioning, and was surprisingly non-noisey (I am a light sleeper and toss a lot).

I found the pad to be very comfortable. I did not feel any lumps or bumps of the ground I slept on. The pad is as light as any in it's comfort range.

We bought two pads for the two of us. We used these pads on two backpacking trips and really liked them. Comfortable, lightweight, easy to pack, fit inside the backpack. I only wish they included a stuff sack.

This pad does a great job especially for the compact size of about a nalgene bottle. It's light and keeps you off the cold ground floor. As long as you have an adequate sleeping bag then you'll be very pleased with this.

I nothing says sleep like a therma-rest. I have spent many nights on the prolite pad and it is the most comfortable I have slept in the back country. Its much better than the foam pads, the extra weight and price is worth it. It sould come with a stuff sack though.

The Therm-a-Rest Prolite Sleeping Pad is a solid pad that is probably one of the most used pads for backpacking. It's very light at a low 13 oz for a small, it's self-inflating, it can be used as a chair, and it is very comfortable. I would say that it packs down to the size of a two-liter soda bottle assuming you have the stuff sack.

I have yet to pop a hole in this pad - from my perspective, it seems extremely durable. I have no problem with dogs walking across this pad, or placing the pad down in a field and laying on it. If I had to make one complaint about the pad, it would be that I find myself slipping off of the pad during the night (I move a lot in my sleep). My sleeping bag and this pad together seem to be relatively slippery, if that makes sense. Rather than that, I like this pad for the ease of use, for the size, for the comfort, and all of that for the price.