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Forclaz Trek 500 L, Self-Inflating Hiking Mattress

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Sale price: $39.99 Regular price:

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Model: 8352447

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Product Features

A photo of the Forclaz Trek 500 L, Self-Inflating Hiking Mattress in use

Forclaz Trek 500 L, Self-Inflating Hiking Mattress is designed for insulation from the ground for sleeping when backpacking or bivouacking.

1.8 lbs. 70.9" x 20.5" x 1". The comfortable, compact self-inflating mattress.

Easy to transport

Weighs 1.8 lbs. Volume: 7 L. Ø 6.9" x 13". Carry bag.

Sleeping comfort

Dimensions 70.9" x 20.5" x 1". Thermal insulation. Adjustable comfort.


Ideal for temperate environments (>41°). R-Value 2.3

Easy assembly/dismantling

Self-inflating. Efficient 2-way valve with anti-return for easy handling.


Non-slip silicone patches. Reduced slippage of the sleeping bag.

Product Lifestyle Image Gallery

Image Gallery

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,dark petrol blue 

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,dark petrol blue 

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,dark petrol blue 

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,dark petrol blue 

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,dark petrol blue

Product Customer Reviews

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Forclaz Trek 500 L, Self-Inflating Hiking Mattress,dark petrol blue
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So uncomfortable

I had the 5 worst sleeps of my life on this thing. It barely has any padding to it, so even fully inflated it's super thin and marginally better than sleeping on the ground.

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Great bit of kit.

I like this mat so much that I am going to buy another one for my son. It's warm and easy to roll up.One very happy customer.

very comfortable!

great to use on sand, grass, and pebbled surfaces

Perfect Buddy

This item is a must. It is so light and it doesnt need much effort to put air on it. You can even use it with or without air inside.

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TREK500 - Self Inflating Trekking Mattress

it's a wonderful item, especially with the self-inflating mechanism - easy to set up and to keep.

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Hi Ben!

Thank you for your review for Trek500 Self-Inflating Trekking Mattress L - Blue!

Your feedback really matters to us, and I'm glad that you're happy with your purchase. It's great to know that you're happy with the self-inflating mechanism that this product has too!

Feel free to come down to any of Our stores to check out Our Hiking/Trekking products and also Our clearance items too! And hope to hear more great reviews from you in future!

"Always on an Adventure",

Mountain Sports Advisor | Decathlon | Quechua | Forclaz | Wed'ze | Simond| Singapore Lab
Trek500 mattress L - Blue

Light and warm. Good support for my back. Simple product to carry.

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Hello Malek,

Thank you for your feedback.

Glad to know that this self-inflating mattress serve you well.

Yes, this mattress is light, weighing only 820g. It is ideal in mild temperature (10 to 20 degrees celcius). Thermal insulation due to foam.

Hope to hear from you again :)

Sport Leader For Hiking & Trekking

"Look deep into nature and you will understand everything better!"
Solid bed

Much better than other brands which only need a few breath to fully inflate the inflatable bed. Minimum time required to prepare for resting.

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Hello Scott,

Thank you for your review.

Glad to know that you enjoyed our product.

Hope to hear from you again :)

Sport Leader For Hiking & Trekking

"Look deep into nature and you will understand everything better!"

The product is good i.e. does the job well. However, loses one star because it's hard to deflate and roll back into the bag.

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Give it a pass

Bought 2 of them last year and used 3 times. Keeps deflating through the night so you end up sleeping on the floor. First times I thought I didnt close the lid properly, bit that’s not the issue. Very very disappointed having spent $120 on these. May I add I always rolled them back in their bags after use.

Colchon autoinflabe

Súper cómodo, práctico y ligero Fácil de llevar

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Gracias por compartir su opinión con nosotros y esperemos verle pronto en nuestra tienda de Polanco o nuestra p@gin@ internet.


Fácil de hinchar, ligero y cómodo

Lo utilice para acampar en la montaña y muy cómodo

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Es cómodo y fácilmente transportable

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la mejor esterilla para dormir

la mejor que he conocido ;)

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Calidad-precio, durabilidad y comodidad

Llevo con esta colchoneta hinchable años... y me encanta. Ojo! Debéis utilizar una esterilla aislante debajo para que os dure mucho más sin que se pinche. Para mí es muy cómoda y ocupa el espacio de la parte de abajo de mi mochila en mis salidas.

Bueno y comodo

Buen producto, da muy buena sensacion de comodidad, preferiria que la bolsa fuera mas larga para transportar por fuera de la mochila

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Additional Product Information



  • 100% Polyurethane

Tent Footprint

  • 50% Polyester cationic
  • 50% Thermoplastic polyurethane

Main fabric

  • 50% Polyester cationic
  • 50% Thermoplastic polyurethane

Carry bag

  • 100% Polyester cationic

The principle of a self-inflating mattress

A self-inflating mattress consists of an airtight envelope glued to an open cell foam in which the air circulates. When you unfold the mattress, it will return to its original shape and thickness (1" for the trek 500 mattress) and fill with air accordingly. However, it requires mouth-inflation to attain the required pressure that suits you. Self-inflation is more or less noticeable depending on the thickness of the mattress.

Easy to set up and put away

When using your mattress for the first time, unroll it, leave the valve open for 24 hours on a flat surface, then inflate it and leave it pressurized for 24 hours with the valve closed. You can put it away again. When bivouacking, take out and unroll your mattress as soon as you set up camp, valve open to facilitate pre-inflation. A self-inflating mattress inflates itself to approximately 60 to 70%. To complete the process, mouth inflation is required to adjust the pressure to suit you.

Thermal properties and warmth

Thermal insulation thanks to the foam. The R-Value expresses the performance and thermal insulation of the mattress. The higher the R-Value, the more the mattress insulates you from the cold ground. R-Value 2.3 (measured in an external EMPA laboratory) An R-Value of 5.9 is equivalent to a minimum temperature rating of about -11°F. 0.7 is equivalent to +52°F The R-Value is not a standard, and each manufacturer can use their own criteria. A standard process is currently being developed.

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. Postural comfort is a very personal element. You can adjust the pressure of your mattress.

Sleeping comfort, support

To keep the slippage between your mattress and your sleeping bag to a minimum, the silicone patches must be placed in contact with the sleeping bag.



Product testing

All our mattresses are subjected to mechanical tests to validate the performance and durability of the mattress so that you can get a good night's sleep and recover properly (resistance to abrasion, resistance to perforation, etc). We also carry out many field tests in real-life conditions.

Storage instructions

For improved durability and reliability of your product, store it stretched out flat, valve open, in a dry and temperate place.

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