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Forclaz Trek 100, Folding Foam Hiking Mattress

Regular price: $29.99 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: $29.99 Regular price:

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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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418 Reviews
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Forclaz Trek 100, Folding Foam Hiking Mattress,granite
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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

it's more than a foam sleeping mat

stops you sliding down the tent, is comfy, and acts as a seat during the day's walking.

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Folding Mattress that works

As with all folding mattresses it's 'of a size', slightly bigger than the Z-l*te and others, but its made of the same injected moulded foam. The advantage of a folded mattress is you can use it to create a frame in a frameless backpack, cut 3 sections from it to make a kneel/sit pad. It's bullet-proof and will never deflate. You can boot bits out of this and it will still take the lumps out of any surface you care to rest your tired bones on. Its BIG, but reliable...

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Trekking mat

I have used this and find it farely comftable and it does feel warm. I am a side sleeper this is not really suited to that type of sleeping but use it with another mat so isn't a problem for me and I'm 140kg. Only time will tell if this durable

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Great bit of kit

not had much chance to use too often but impressed so far

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Just what I needed

It's a standard folding ccf mat, not much to say about it. Comfortable enough and warm enough. I cut mine down to 8 of the 12 sections and it's now 205g. Also useful to act as a frame in my frameless backpack. Would recommend to those looking for a versatile and modular sleeping mat with minimal weight penalty.

Nice product


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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

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    minimize manufacturing costs

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    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual