Product Colors and Sizes

  • Black Friday product
  • New Deal product
  • Cyber Monday product
  • Clearance product
  • Deal product
  • Best Seller product
  • Ecodesign product
  • New product
  • Staff Pick product
  • In The News product
  • Innovation product
  • product

Forclaz M100 Foam Hiking Mattress

Sale price: $14.99 Regular price:

7.4 oz the lightest foam mattress and groundsheet.70.9" x 19.7" x 0.3" for minimal comfort. 10-year warranty.

Color: Select a color
Size: Select a size
Sale price: $14.99 Regular price:

Free shipping over $49

Free returns

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

About this item:

  • R-Value 1.2 I Ideal for Warm Environments: >59°F/15°C
  • Dimensions 70.9” x 19.7” x 0.3”
  • Easy to transport: Weight: 7.4 oz (210 g) | Packed Volume: 6.6 L
  • 10-year warranty.
Model: 5591048

Product Features

A photo of the Forclaz M100 Foam Hiking Mattress in use
A photo of the Forclaz M100 Foam Hiking Mattress in use

Forclaz M100 Foam Hiking Mattress | Passionate about backpacking,our designers have imagined this mattress to protect themselves from ground&sleep in trek/bivouac/protect your inflatable mattress.

7.4 oz the lightest foam mattress and groundsheet.70.9" x 19.7" x 0.3" for minimal comfort. 10-year warranty.

Abrasion resistant

Alu film on upper surface reducing abrasion and increases thermal insulation.

Easy to transport

Weighs 7.4 oz. Volume when rolled: 6.6 L. Elastic strap.

Sleeping comfort

Dimensions 70.9” x 19.7” x 0.3”. Simple and cursory postural comfort.


Ideal for warm environments (>59°F).R-Value 1.2

Easy assembly/dismantling

Rolled foam. Elastic strap.

Questions & Answers

Product Customer Reviews

Skip to reviews
2778 Reviews
Write a Review 
Forclaz M100 Foam Hiking Mattress, pewter Image 7 of 6
Filtered by reviews Loading reviews…
Purchased to protect from…

Purchased to protect against humidity and cold rising from the ground. Effective, the mattress is no longer damp in the morning. The ideal would be 2 mattresses side by side because it is not wide enough. To see the solidity over time

I recommend

A sleeping mat perfect for a tent

icon-circle-checkmark verified purchase
Very light and comfortable

It is a very light and comfortable product, practical for when you need something to insulate under a mattress.

Good product

Good product

icon-circle-checkmark verified purchase
Very fine

Very thin and light. I use it for insulation and additional protection under an inflatable mattress.

Complementary to the camp bed

Improves outdoor insulation

icon-circle-checkmark verified purchase

A 100% recommended product

icon-circle-checkmark verified purchase


icon-circle-checkmark verified purchase
Good product

Product that meets my expectations and that I use very regularly.



icon-circle-checkmark verified purchase

Mat is producing heat good only in winter. For summer camping this mat is not recommended

icon-circle-checkmark verified purchase


icon-circle-checkmark verified purchase
Sleeping mat

It does its job

Very comfortable

icon-circle-checkmark verified purchase

After a year, the invitation is then kept 😉

icon-circle-checkmark verified purchase
Skip to reviews

Additional Product Information

Volume and dimensions when folded

Rolled dimensions Ø 5.1” x 19.7”.Volume 6.6 L.Density of the foam 66.1 lbs/m3.

Thermal properties and warmth

Sleep on aluminized side, facing the sleeping bag with foam side on the ground to minimize losses of body heat.R-Value 1.2 (measured by EMPA, an independent laboratory).The R-Value is a measure of 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 is equivalent to a minimum temperature rating of approximately -11°F. 0.7 is equivalent to a temperature rating of +52°F.R-Value is not a standard (in progress).

Product test

The sleeping comfort, also known as ”postural comfort,” of the mattresses is defined by our Research and Development Center. All our mattresses are subjected to mechanical tests to check the performance and resistance of the mattress in order to guarantee you the best sleep and the best recovery. We also carry out numerous field tests in real-life conditions.

Product testing

This mattress is guaranteed for a period of 10 years from the date of sale indicated on the 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
  1. product-research

    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

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs


Size Guide Visual

Please Sign In to Post Your Question

In order to notify you about the answer it is required to Sign In.

Sign In