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Nemo

Nemo Tensor Trail (Regular)

Best use

Made for
Backpacking and wild camping
Also works for
Bikepacking
Not for
Winter mountain
Why these labels
  • Backpacking and wild camping: The maker states this use, and the published specs do not rule it out.
  • Bikepacking: Small enough for bike bags: packs to 1.8 litres
  • Winter mountain: R-value 2.8: too little insulation on frozen ground

From the maker's stated use and the published specs.

Premium Confidence: High
  • Summer wild camp: 8/10 UK, roughly May to September, nights above about 8 °C, sheltered pitches.
  • Three-season hills: 4/10 UK hills in spring and autumn. Wind, rain, and nights near freezing. Capped at 4: needs warmth 5+ (R 3 or more).
  • Winter camp: 4/10 UK winter or high ground. Below freezing, strong wind, possibly snow. Capped at 4: needs warmth 7+ (R 4 or more).
  • Weight: 9/10 How much it adds to your pack, compared with the whole market.

R-value 2.8 (ASTM).

Lowest price we found

£159.99 at Ultralight Outdoor Gear

In stock. Free delivery. Checked 8 Nov 2026.

RRP £180, checked 19 Oct 2026.

Go to Ultralight Outdoor Gear Compare 2 shops

Summer and mild three-season wild camps where weight matters

Valve
Laylow micro-adjustable valve
Baffles
Spaceframe baffle design
Type
Air
R-value
2.8 (ASTM)
Weight
395 g (Regular)
Thickness
8.9 cm
Size
183 x 51 cm
Packed size 1.8 L, 25.5 cm long and 9.5 cm across Compare with a 2-litre bottle

About as long as a 2-litre bottle and about as wide as one. Drawn to scale.

Where to buy

Ultralight Outdoor Gear £159.99 In stock. Free delivery. Free UK delivery over £15.

View at shop

Needle Sports £162 In stock. Free delivery. Free UK delivery over £50.

View at shop

Prices 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 4/10

How well it stops the cold ground chilling you. 4: A bit below average.

Nemo's R-value of 2.8 (labelled ASTM F3340-18 on its product page) sits in the R 2–2.9 band: summer and mild three-season nights. CleverHiker advises mild to warm nights only.

Thickness

From maker's figures 8/10

How deep it is. Deeper is comfier, above all for side sleepers. 8: Clearly better than most.

8.9 cm thick.

Quietness

From reviews 10/10

How little it crinkles or squeaks when you turn over. 10: The best you can buy for this.

All four reviewers say the Tensor Trail is quiet, with no crinkle when you roll over.

Weight

From maker's figures 9/10

How much it adds to your pack. 9: Among the best you can buy for this.

Nemo's 395 g minimum weight for the Regular is under the 400 g line. Ultralight Outdoor Gear lists 402 g ex bag and pump, which would be band 4. With pump sack and patch kit it is 477 g.

Packed size

From maker's figures 8/10

How much room it takes in or on your rucksack. 8: Clearly better than most.

Packs to a roll 25.5 cm long and 9.5 cm across: 3.1416 x 4.75 x 4.75 x 25.5 = 1,808 cm³, about 1.8 L, in the 1.5–2.4 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 8/10

How comfy it is, including for side sleepers.

4 reviews on comfort, e.g. "That's right side sleepers – no bottoming out!".

Stability*

Estimate: only 1 review about stability (fewer than the 3 we need, so never above 8) 6/10

How well you stay on it without rolling off or bouncing.

1 review on stability, e.g. "any movement toward the edge required recentering.".

In short

Good for

  • Summer and mild three-season wild camps where weight matters
  • Side sleepers who want a thick pad at under 400 g
  • Light sleepers: the floating film does not crinkle
  • Pairing with a closed-cell mat for colder nights

Strengths

  • Only 395 g for a full-length 8.9 cm thick pad, and about 1.8 L packed
  • Quiet: the floating metallised film does not crinkle
  • Boxy baffles give a stable surface without the wobble of some air pads
  • Pump sack, patch kit and an adjustable zero-profile valve in the box
  • 20D top with a 40D base is tougher than many pads of this weight

Weaknesses

  • R 2.8 is not warm: reviewers say mild nights only, and cold sleepers should add a foam mat
  • The Regular is 51 cm wide, which Backpacker found narrow for its thickness: the Regular Wide is more stable
  • The Trek found reports of slow leaks early in some pads' lives, so use a footprint on rough ground
  • An air pad gives no insulation or cushioning once punctured, unlike a foam-filled pad

Sources

We haven't tested this ourselves. Every score comes from these specs, tests and reviews.

ShowHide sources (7)
  1. Nemo: Tensor Trail Ultralight Insulated Sleeping Pad (R-value graphic and fabrics on Nemo's page; weight and packed size from Nemo's table as shown by Needle Sports and Live Feral) Specs, 19 Oct 2026. Used for: warmth, thickness, weight, packed size
  2. CleverHiker: NEMO Tensor Trail Ultralight Insulated Sleeping Pad Review (Arizona Trail) Review, 2 Oct 2025. Used for: quietness, comfort
  3. The Trek: Nemo Tensor Trail Ultralight Sleeping Pad Review Review, 28 Oct 2024. Used for: quietness, comfort
  4. Better Trail: Nemo Tensor Trail Sleeping Pad Review Review, 28 Apr 2026. Used for: quietness, stability
  5. Backpacker: Nemo Tensor Trail Sleeping Pad Review (Regular Wide tested) Test, 6 May 2024
  6. Outside Bozeman: Review: Nemo Tensor Trail Sleeping Pad Review, 28 Apr 2025. Used for: quietness, comfort
  7. Australian Geographic: Nemo Equipment Tensor Trail Ultralight sleeping pad: Tested Test, 10 Jul 2024. Used for: comfort