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Lighter is faster.

The Therm-a-Rest ProLite 4 Sleeping Pad is a lightweight, multi-functional, self-inflating sleeping pad. It is engineered to accommodate people who are carrying everything needed to survive???from alpinists to adventure racers and long-distance backpackers. Therm-a-Rest's urethane foam is extremely lightweight but still packs a warm punch to help you through those chilly nights. The ProLite 4 is thick enough for four-season use and features a sticky-dot non-slip surface that ensures your mattress stays put for a full night's sleep. It's also compatible with the Lite Chair Kit for added backcountry comfort. Pair it up with a Fast & Light Stuff Sack for protection and portability.

  • Urethane foam
  • Mummy bag shape
  • Stick-dot, nonslip surface on bottom

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Here's what others have to say...

Unanswered Question

Does it come with a stuff sack?

4 5

Great quality, but not for side sleeping

  • Familiarity: I've used it several times

This is regarding the Large size and I'm 5' 9" and 165 pounds. I gave this 4 stars because it is made of real quality materials, and it packs small enough to fit in my 60L pack for an extended hike. It is lightweight and a huge upgrade if you are sleeping on a yoga mat or just a flat ground pad. I couldn't give it that 5th star because it is not for side sleepers. I am a restless sleeper and sleep mostly on my front, but back and sides at times. During a recent 3 night hike in cool temps, I used this and slept on my side more and each night my hip and shoulders hurt and my shoulders were sore in the morning. If you stay on your front or back, it is great! Like others have said, the side sleeping is a definite "con" to this pad. The pad itself is a great pad other than that. The packed size stated is a little small. 13" x 6.5" is more like it unless you are a factory machine that can roll it back up to factory tightness. I pictured it here with a ruler and DVD case on it's side to give a size perspective. It fits good in a pack with other stuff sacks for food/clothing and a tent and jet boil.

Great quality, but not for side sleeping
5 5

Great pad for the price

  • Familiarity: I've used it several times

TThis was my first sleeping pad and it worked great. I did a lot of research prior to making the purchase, and finally settled on the ProLite 4 because of its great price point (at 20% off sale), and its relative size and weight to other pads at that price.

I got a regular size and at 5'10" and ~175 lbs. I had more than enough pad to sleep on and was kept very comfortable all night. I sleep on my front so keep that in mind, but did notice it may not have been the most supportive or comfortable for anyone that sleeps on their side.

Overall a great pad for a great price, with no complaints a out its size, weight, or general performance.

Also, have used in a hammock and works equally well.

5 5

Huge upgrade from thin foam roll up mat

  • Familiarity: I've used it several times

I have been tent camping with a thin foal roll up mat for several years with the assumption that spending the extra $ on a sleeping pad like this just wouldn't be worth the extra cost - but after a few trips this summer involving some uncomfortable and very restless nights, I decided to go for it, and I could not be more pleased with the quality of sleep I am getting - It has made a world of difference.

- I am 6'4" and just under 200lbs and the large mat suits my size and weight very well.

- Other reviewers are correct in that the pad only self inflates to a certain point, and you need to help it along after that - but it doesn't require much and is very easy to do. (no reason to drop a star from the review in my opinion)

- The quality seems to be great. No complaints so far.

- The packed size is accurate. A little large for longer backpacking trips when rolled up into the stuff sack (included with purchase). It takes up a good portion of my 74 liter pack - but considering the comfort it offers, I won't hesitate to take it on weekend trips when I have a little space to spare.

Overall extremely happy with this sleeping pad and would highly recommend to anyone upgrading from a simple roll-up foam mat - although it should be noted that I have little reference to other air/foam pads like this, so it's possible that there are better options out there - but at this point I see no reason to look any further than this.

4 5

Helps with a great night sleep!

  • Familiarity: I've used it several times

this has been a great sleep pad for introductory backpacking trips as well as long weekend camping trips! It packs down to a nice size, not an ideal weight though. Perfect size for fitting underneath my 6' 5" sleeping bag- doesn't have me slipping off of it during the night! And the price was awesome!

4 5

Love it for the great price.

  • Familiarity: I've put it through the wringer

I Got this sleeping pad because a friend recommended it to me and it was a great price! I've taken it out many time now and am overall happy with the purchase.

-Love the foam, I think it makes it a lot more comfortable than just an air sleeping pad.
-It is partially self inflating which is just nice.
-It doesn't slip around when you flip flop in the middle of the night

-It doesn't pack up as small as i'd like, but I think most foam sleeping pads don't
-It is a little thin when I sleep on my side and I notice my hip bone does end up digging into the ground.

But I mostly sleep on my back, so it hasn't been bad.

Overall, I like the pad, but I think when I am ready to upgrade I will find a different sleeping pad.

5 5

Pretty Neat

  • Familiarity: I've used it once or twice and have initial impressions

Took this sleeping pad with me on my first backpacking trip and it was great. Lightweight, easy to inflate (partial self-inflation is a plus), and prevented me from feeling discomfort from the pines on the ground.

Shady glade is a beautiful color.

5 5

A Cloud

  • Familiarity: I've put it through the wringer

This is is probably the best sleeping pad I have owned. I have always traditionally stuck to using foam pads, but boy, I missing out.

• Packs small and I can fit it into my bag.
• Very comfy for back sleeping
• It is lighter than any other pad I have used

• It's not the most comfortable on my boney hips when side sleeping, but with that said, I still wake up fresh and without soreness.

5 5


  • Familiarity: I've used it several times

This is a great product worked as it was supposed to. I used it for some over night hikes in the white mountains of NH. I'm 5'8" 160lbs and slept comfortably with no back pain. It self inflates but you can always blow a little more air in the pad if you need a little more comfort. It is also very compact and light weight. Normally I would store my sleeping pad at the bottom of my bag, but it packs so small I throw it right in the pack. The pack is definitely worth it for the price especially since I snagged it while was on sale pluse had and extra 20% the sale price.

5 5

Solid pad

  • Familiarity: I've used it once or twice and have initial impressions

Packs down small, very comfortable. Self-inflation takes a while but does about 50% of the work. Otherwise takes maybe 30 seconds to fill. Seems pretty good. Got it on sale and very worth it compared to the competition.

5 5

Talk about support!

I'm a pretty heavy dude, 6' 210lbs and i was worried it was a waste of my time. This sleeping pad was light and was great! I'm not sure it actually self inflates to where I need it but it takes 30 seconds to blow up. Great deal!

4 5

Like frosted flakes

  • Familiarity: I've used it several times

...they're more than good, they're great!

4 5

Great for hammock camping.

  • Familiarity: I've used it once or twice and have initial impressions

super light didn't add much weight to my pack. fit nicely in my hammock.

5 5

Beauty rest

This pad is fantastic. I just bought it and have only used it twice but it was so comfortable on each crammed night sleep in my midget tent. Woke up to NO back pain which is a giant plus when backpacking. Sale price is great but even full price is worth it.
I got the regular size and it's perfect for me (5ft 4)

Therm-a-Rest ProLite 4 Sleeping Pad in Regular size. How thick is this pad? Description shows length, width and weight, but no thickness. 1", 1.5", 2 " ?

5 5

just ordered

  • Familiarity: I've put it through the wringer

just ordered this thing because ive been looking to order a sleeping pad for awhile and i was being rather picky because ill be living on it for most of the year so i wanted something that was self inflating but also light and packs small and nothing seemed to fit that criteria. and bam! the day before i was going to make my purchase this showed up in the search list! BC has a great deal on it I'm assuming because of the large inventory due to it being a new item and back country is the only place that has this pad listed so I'm pretty excited to be one of the first people to test it out, I'm heading to the new river gorge and the red river gorge for the rest of spring and summer and ill be sure to come back and leave a review for everyone once I've put it to use

Pad just came in and it's as awesome as I expected it to be! And to anyone considering purchasing this pad the specifications are slightly wrong. The large pad weighs in at 2 lbs 4 oz's but on the plus side the R-value is 3.2 rather than 2.2 like specified AND it comes with a stuff sack!