Therm-a-Rest
Therm-a-Rest Trail Pro (Regular)
Where it fits
- Not for
- Bikepacking
Why these labels
- Bikepacking: Bulky for bike bags: packs to 10.6 litres
From the maker's stated use and the published specs.
- Summer wild camp: 5/10 UK, roughly May to September, nights above about 8 °C, sheltered pitches.
- Three-season hills: 6/10 UK hills in spring and autumn. Wind, rain, and nights near freezing.
- Winter camp: 6/10 UK winter or high ground. Below freezing, strong wind, possibly snow.
- Weight: 4/10 How much it adds to your pack, compared with the whole market.
R-value 4.4 (ASTM).
Comfort-first wild camps from spring to autumn, and mild winter nights, when you carry the kit a short way
- Valve
- WingLock
- Type
- Self-inflating
- R-value
- 4.4 (ASTM)
- Weight
- 850 g (Regular)
- Thickness
- 7.6 cm
- Size
- 183 x 51 cm
Packed size 10.6 L, 28 cm long and 22 cm across Compare with a 2-litre bottle
About as long as a 2-litre bottle and about twice as wide. Drawn to scale.
Where to buy
Ultralight Outdoor Gear £114.99 In stock. Free delivery.
View at shop: Ultralight Outdoor GearPrices checked 8 Nov 2026 on each shop's own page; shops can change them. We earn no commission on these links; shops are listed by price. More
Our ratings (out of 10)
1 to 10, compared with the whole market. Each says what it's based on. How we score
Warmth
From maker's figures 7/10How well it stops the cold ground chilling you. 7: Better than most.
Maker's R-value of 4.4 sits in the R 4–5.4 band: good for three seasons and mild winter nights. Therm-a-Rest's FAQ on the product page says its R-values use the ASTM F3340-18 standard.
Thickness
From maker's figures 7/10How deep it is. Deeper is comfier, above all for side sleepers. 7: Better than most.
7.6 cm thick.
Quietness
Estimate from maker's specs: mat type (fewer than 3 reviews about noise) 7/10How little it crinkles or squeaks when you turn over. 7: Better than most.
No review we found says how noisy it is, so this is an estimate from the mat type.
Weight
From maker's figures 4/10How much it adds to your pack. 4: A bit below average.
Maker lists 850 g for the Regular, which sits in the 750–999 g band. UK shop pages and T3's scales say 774 g, and Cotswold lists 820 g: all the same band.
Packed size
From maker's figures 1/10How much room it takes in or on your rucksack. 1: A real weak point.
Packs to 28 x 22 cm (length x width of the roll): 3.1416 x 11 x 11 x 28 = 10,644 cm³, so 10.6 L, in the 7 L+ band.
What reviewers say (out of 10)
Ratings marked * are from reviews and are not part of the trip score. They are reviewers' scores, not our own measurements. How we score
Comfort*
Reviewers' average 7/10How comfy it is, including for side sleepers.
4 reviews on comfort, e.g. "there was no denying how plush it felt. [...] However, I really didn’t sleep well on this pad.".
Stability*
Reviewers' average 6/10How well you stay on it without rolling off or bouncing.
3 reviews on stability, e.g. "every time I changed position, I felt like I was going to tumble off it".
Reviewers disagree on this.
In short
Good for
- Comfort-first wild camps from spring to autumn, and mild winter nights, when you carry the kit a short way
- Side sleepers and anyone who wants a mattress-like feel without paying for a thick air mat
- Car-supported camping, bothy trips and shorter backpacking trips where pack space isn't tight
Strengths
- Thick 7.6 cm foam core feels very plush and smooths out lumpy ground
- R 4.4 keeps the cold ground out for three-season use and mild winter nights
- Soft stretch-knit top fabric feels nice against the skin, and tough 50D top and 75D bottom fabric
- Self-inflating, so most of the work is done for you, and the big WingLock valve makes topping up easy
Weaknesses
- Heavy for a backpacking mat: 850 g on the maker's figure, 774 g on a UK shop's and T3's scales (UKC weighed the Wide at just over 1 kg)
- Bulky when packed (about 10.6 litres), much bigger than an air mat of similar warmth
- Narrow and a bit wobbly for restless sleepers: one tester felt like rolling off it, though another found it roomy
- Needs extra breaths to firm up and takes a bit of squeezing to deflate; one reviewer also found the top fabric crinkly while another found it silent
- A few owners on the maker's own review page report delamination and a stuff sack seam splitting; no independent long-term test found
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.
ShowHide sources (6)
- Therm-a-Rest: Trail Pro Sleeping Pad
- T3: Therm-a-Rest Trail Pro Sleeping Pad review
- Better Trail: Therm-a-Rest Trail Pro Sleeping Pad Review (tested the outgoing version)
- UKC Gear: Therm-a-Rest Questar -6C Sleeping Bag and Trail Pro Mat (Regular Wide tested)
- UKC/UKH Gear: Therm-a-Rest Questar -6C Sleeping Bag and Trail Pro Mat review (Regular Wide tested)
- Northern Bush: Review, Therm-a-Rest Trail Pro 4-Season Sleeping Pad