Therm-A-Rest ProLite Plus Review

On a trek, where daytime walking can be exhausting, the ability to rest properly during the night becomes crucial. In this context, having a mattress or sleeping pad that provides comfort while staying lightweight and compact in your backpack is essential. The Therm-a-Rest Prolite Plus self-inflating mattress gave me that and so I wanted to share it with you. This sleeping pad is the first one I’ve had the opportunity to review, and it appears to come highly recommended by various YouTubers and other sources.

Therm-A-Rest ProLite Plus Review

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Technical Description:

  • Weight: 760 grams
  • Materials: 100% polyester (outside), Atmos foam (inside)
  • Insulation: R-value 3.4
  • Folded dimensions: 11 x 6.8 inches
  • Inflated dimensions: 72 inches long x 20 x 1.5 inches thick
  • Product Care Instructions: Hand Wash Only


  • Compact and light
  • Good sleeping comfort
  • Excellent insulating power
  • Perfect for backpacking
  • Comes with a stuff sack and instructions


  • Not suitable for winter
  • Pretty much thin

During my three-day Tour of Mount Tabor, where I was entirely self-sufficient, I required a sleeping pad that offered minimal bulk and weight without compromising on comfort… Is that asking for the moon?

After much research, I opted for the Therm-a-Rest Prolite Plus self-inflating sleeping pad. With its 760g, the weight is relatively light, and above all the compression in its cover is quite remarkable (nothing to do with my old camping mattress!). As a result, it fits very easily in the sleep pocket of my backpack besides my sleeping bag, which saves a lot of space! It is also very easy to deflate it and roll it up compressed in its storage bag.

Self-Inflating, Really?

To be honest, I had no great illusions at this level but it disappointed me all the same. In fact, it is not self-inflating at all! The first time, out of its packaging, I waited 20 minutes for the foam to swell, and… nothing! Suddenly, it was me that it swelled and I blew in the mouth.

Therm-A-Rest ProLite Plus Test

Since then, by dint of using it, it’s true that it self-inflates in a few minutes. You just need to blow a little to give the sleeping pad the desired volume. I had read on the forums that it should not be done (introduction of humidity inside) but the Therm-a-Rest user manual says to do so, so…

Insulation & Comfort

I had hesitated with the standard Prolite model with its thickness of 1 inch and its lighter weight of 100 g but even if it means putting almost 100 dollars in a mattress, you might as well be good! Especially if you walk for several days. And then, it isolates less well which makes it less versatile.

Insulation and comfort level

The Therm-a-rest Prolite Plus is thicker (1.5 in.), which makes it a 4-season mattress, sufficiently insulating (R-value 3.4) to sleep on the snow. I haven’t tested it in extreme conditions yet, but I can still assure you that we’re super comfortable! Nothing to do with the old inflatable rubber mattresses, poorly distributed, which make noise every time you turn around.

The weight of the body is perfectly distributed and the feeling is very comfortable. The dimensions are ergonomic and, despite the slight slope of the destination, neither I nor the mattress slipped during the night thanks to the grippy texture and the bumpy relief. It’s up to me to take care of it now but the fabric seems quite resistant to light abrasion and possible scratches.

The Verdict

The Therm-a-Rest Prolite Plus sleeping pad is really the essential equipment to take on a trek as its compactness and comfort are appreciable. After the tiring days of hiking, you will be sure to be able to recover properly during the nights to be ready the next day!

However, the first inflation of the sleeping pad might take a while. To expedite the process, blow air into it, seal the cap, then push the air to the other side of the pad. Uncap it again, and it will start drawing in air.

Frequently Asked Questions

Can the Therm-a-Rest ProLite Plus be used for flights?

Absolutely! Many users find it significantly improves comfort during long-haul flights, especially in lay-flat seats.

Is it suitable for outdoor activities in various conditions?

Yes, the Therm-a-Rest ProLite Plus is versatile and durable. You can use it during fire sessions, camping, hiking, and even lounging at home.

How does it handle moisture and storage in humid climates?

The instructions suggest storing it inflated with the valve open, but users in moist climates have found success with folding it in half, applying weight to release air, and allowing it to further inflate.

How does it perform in cold weather?

You will stay warm and cozy, even in cold conditions as low as 30 degrees F. It’s praised for providing warmth and comfort during varied weather conditions.

Is the Therm-a-Rest ProLite Plus suitable for side sleepers?

Absolutely! Users have expressed surprise at its comfort, even for side sleepers. It provides ample cushioning and support.

How does it handle long-term use and rough conditions?

The Therm-a-Rest ProLite Plus has received positive feedback for its durability. You can take it on multiple trips without encountering any issues.

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