Nemo
Nemo Astro Lightweight Non-Insulated Sleeping Pad (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 1.3 litres
- Winter mountain: R-value 1.5: too little insulation on frozen ground
From the maker's stated use and the published specs.
- Summer wild camp: 7/10 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. Below this trip's minimum: needs warmth 7+ (R 4 or more).
- Weight: 7/10 How much it adds to your pack, compared with the whole market.
R-value 1.5 (ASTM).
Summer wild camps and bothy trips where nights stay well above 10 °C
- Valve
- Laylow Micro-Adjustable Valve
- Baffles
- lateral baffles
- Type
- Air
- R-value
- 1.5 (ASTM)
- Weight
- 540 g (Regular)
- Thickness
- 8.9 cm
- Size
- 183 x 51 cm
Packed size 1.3 L, 20 cm long and 9 cm across Compare with a 2-litre bottle
Shorter than a 2-litre bottle and about as wide as one. Drawn to scale.
Where to buy
Alpinetrek £89.96 In stock. Free delivery. Lumen Regular, price includes duties and taxes; list price £119.95; free UK delivery from £85.
View at shop: AlpinetrekUltralight Outdoor Gear £109.99 In stock. Free delivery. RRP £119.99 on its page; free UK delivery over £15.
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 2/10How well it stops the cold ground chilling you. 2: A weak point.
Nemo's R-value of 1.5 is marked 'ASTM F3340-18' in the R-value graphic on its product page, and is under R 2: summer only.
Thickness
From maker's figures 8/10How deep it is. Deeper is comfier, above all for side sleepers. 8: Clearly better than most.
8.9 cm thick.
Quietness
Estimate from maker's specs: mat type (fewer than 3 reviews about noise) 5/10How little it crinkles or squeaks when you turn over. 5: Does the job. Average for wild-camping gear.
No review we found says how noisy it is, so this is an estimate from the mat type.
Weight
From maker's figures 7/10How much it adds to your pack. 7: Better than most.
Nemo's minimum weight for the regular is 540 g (mat alone), in the 400 to 549 g band; 580 g with stuff sack and pump sack. Ultralight Outdoor Gear lists 603 g.
Packed size
From maker's figures 9/10How much room it takes in or on your rucksack. 9: Among the best you can buy for this.
Nemo gives 20 cm long and 9 cm across, about 1.3 L, under the 1.5 L line.
In short
Good for
- Summer wild camps and bothy trips where nights stay well above 10 °C
- Using as a comfort layer over a foam mat on cold nights
Strengths
- 8.9 cm thick with lateral baffles that stop the mat curling under you
- 75D recycled polyester shell is thicker than the 10D to 20D fabrics on ultralight mats
- Pillow baffle at the head helps keep a pillow in place
- Packs to about 20 x 9 cm; Vortex pump sack and valve included
Weaknesses
- R 1.5 is summer only: no use on cold ground without a foam mat
- 540 g is heavy for what it offers; Nemo's Tensor Elite weighs less than half as much
- No independent test of this exact mat: comfort and durability are estimates, not reviewed scores
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.