Forclaz M100 Foam Bivouacking/Hiking/Trekking Mattress - Grey



Made for sleeping during trekking, itinerant hiking and bivouacking.
210g. 180 x 50cm. The lightest foam mattress (ground sheet)! 10-year guarantee.

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Easy transportWeight 210 g/Volume 6.6 L/Elastic support.
Sleeping comfortDimensions 180 x 50 x 0.7 cm.
WarmthIdeal for high temperatures (+20°C).
Easy assembly / dismantlingRolled foam/Support elastic
Abrasion resistanceAluminised film limits wear
Environmental impactComparison of the impacts of the life cycle of trekking mattresses
Warranty10 Years
Technical Information

Foam density
30 kg/m3
A score for comparing products' environmental impact
The product's environmental impacts are calculated across its entire life cycle using various indicators. An ABCDE score is provided to help you easily identify the most environmentally friendly products when comparing the same type of product (T-shirts, trousers, backpacks). Decathlon is a voluntary supporter of this environmentally-friendly labelling approach. Explanatory video:
CategoryFoam Mattress

For1 person


Dimensions (cm)180 x 50 x 0.7

Folded sizeØ 13 x 50cm / 6.6l

Available sizesone size
Information / Concept / Technology
Foam : 100.0% Polyethylene (PE)

Product test
This mattress is guaranteed for 10 years from the date shown on the sales receipt. The product covered by the guarantee will be repaired or exchanged free of charge. The guarantee covers defects in your mattress, with the exception of those resulting from normal wear or from use in irregular conditions. This special 10-year guarantee will only be granted upon presentation of the product and sales receipt.


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Less width
Used for 7 to 12 months
It is not enough wide, using sleeping bag cause you slip off on floor while turning in sleep
Response of the brand
Hello Mr Monty,

Thank you for taking your valuable time in sharing your experience with us. We are sorry to hear that the mattress size is not sufficient for you. This mattress is the lightest in our range designed for Trekking where you need to carry this for multiple days. I have provided links to the mattresses which are on the heavier side but much more wider.

120 cm:

140 cm:

If you are not happy with the product, kindly visit any of our stores to have it exchanged with these.

I am available for any further queries:)

Varun Nair
e-Sports Manager
Works Well Enough
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Used for 1 week or less
I used the product for a recent trek and it worked well. Very light in weight and better in terms of product quality.
Not recommended for use
Used for 1 week or less
Hey guys I bought this mat just a week ago and I would not recommend it to use the silver coating which is used to give thermal insulation has started to come off in just one use and also just in one use of wear and tear the mat did tear out as well . Again would not recommend to buy this product not useful at all .
Response of the brand
Hello Prashant,Thank you for your feedback on the Forclaz M100 Mattress. We are sorry about the unpleasant experience you have had with the product. All our products are tested by users in the field as well as in the laboratory to ensure the quality and comfort we promise to our users. However, in this case, the same issue has been reported by another user, and it could be a manufacturing defect. So, I kindly request you to visit any of our stores or write to to have the refund or get it exchanged with a different product. We will investigate the issue further and fix the issue as soon as possible.I remain available for further queries.
Does the job
Used for More than 1 year
Hiking is not about extreme comfort, this will definitely help you sleep better and very good insulator.
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