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Forclaz Trek 100, Folding Foam Hiking Mattress

Sale price: $34.99 Regular price:

13.1 oz. 70.9" X 21.7" X 0.8". Foam mattress - the most versatile groundsheet and very lightweight. 10-year warranty. Accordion folding back on itself.

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Sale price: $34.99 Regular price:

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San Francisco, 735 Market St. Options

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Model: 8492712

Product Videos

Product Features

A photo of the Forclaz Trek 100, Folding Foam Hiking Mattress in use

Forclaz Trek 100, Folding Foam Hiking Mattress | Our backpacking team designed this multipurpose, folding mattress to protect you from the ground when sleeping on a trek or camping.

13.1 oz. 70.9" X 21.7" X 0.8". Foam mattress - the most versatile groundsheet and very lightweight. 10-year warranty. Accordion folding back on itself.

Abrasion resistant

Film that prevents abrasion.

Easy to transport

13.1 oz. 11.5 liter volume. Accordion folding shape. Elastic support trap.

Sleeping comfort

Dimensions 70.9" x 21.7" x 0.8".Deep, thick and comfortable. Thermal insulation.


Ideal for temperate environments (>41°). R-Value 2.5

Easy assembly/dismantling

Easy accordion folding. Use as a seat, mat, cushion or half-mattress.

Product Customer Reviews

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610 Reviews
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Forclaz Trek 100, Folding Foam Hiking Mattress,granite
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Great Folding Mat/Pad

Easy to use and transport. Doubled as a seat cushion on long hikes, but used mainly as a Sleeping Mat under my Sleeping Pad. Did an excellent job on my back country camping trips in Ontario.

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Hello Jj,

We are go glad to hear, thank you for your review!

Great Product

Excellent products. Lightweight for carrying & tough on the rocks of Scotland. Loved how warm it kept your behind whilst sat on it.

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All Good

All Good

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Great for scout camp

Purchased for 12 year old boy for his first scout camp and he loved it!

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Excellent for cycle touring

Owned for over a year used several times. Absolutely would recommend it. Packs small.

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Does what it says, great comfy product.

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Very good


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Wish I'd found it sooner

OK I've literally just had it but have tested it on loads of bags of frozen veg. I've had tons of foam mats, military, nemo, multimat, exped to name a few and can already tell this is going to be my go to mat. It's one of the warmest, comfy, slightly wider without being ott and I prefer the folded dimensions and colour. Exceptional value and brilliant service from this site. Thank You guys.

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For laze sleeping pad


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Great quality for the price

Nice lightweight piece of gear and very competitive. Good to top up the r value of your sleep system.

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Love it

Light and comfy. Bought it for cycle touring - and fits nicely on my back pannier rack lengthways, just tucked under the seat.

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Does what it states bit big but ok I’m going to be reviewing a lot more camping hiking products on u tube channel unknown camper

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Good for sleeping on, better than foam roll mat

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Good buy

Bought this sleeping mat as I forgot mine on a trip and went past a decathlon. Now it's pretty much my main sleeping mat Good weight Comfortable enough (never had a bad nights sleep) Good price

Big but comfortable

Takes a bit of room when packed and not in use but does the job nicely when sleeping

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Additional Product Information



  • 100% Foamed polyethylen

Volume and dimensions when folded

Folded size 5.9" x 5.5" x 21.7". Elastic support strap. 11.5 liter volume. Weight including the pack: 13.4 oz Foam thickness 65 lbs/m3.

Thermal properties and warmth

Sleep on the aluminized side, facing the sleeping bag with the foam side on the ground to minimize the loss of body heat. R-Value 2.5 (measured by EMPA, an independent laboratory). The R-Value is a measure of the thermal performance and insulation. The higher the R-Value, the more the mattress insulates you from the cold ground. An R-Value of 5.9 means a minimum temperature of use of approximately -11°F. 0.7 is equivalent to a temperature rating of +52°F.

Thermal properties and warmth (2)

The R-Value is not a standard, each manufacturer can use their own criteria. A standardization process is currently underway.

Comfortable postural support

For a foam mattress, this mattress offers a greater level of comfort thanks to its design and the depth given to the foam by the mold. This specific design allows for 0.8" mattress thickness, giving home comfort and real postural support.



Product testing

This mattress is guaranteed for a period of 10 years from the date shown on your sales receipt. The product covered by the warranty will be repaired or exchanged free of charge. The warranty covers the defects of your mattress apart from those resulting from normal wear and tear and improper use. This special 10-year warranty is only valid with the product and sales receipt.

Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
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    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

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    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual