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Forclaz Trek 500 L, Self-Inflating Hiking Mattress

Regular price: $39.99 Regular price:

1.8 lbs. 70.9" x 20.5" x 1". Self-inflating mattress, comfortable and compact.

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Sale price: $39.99 Regular price:

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Model: 8612278

Product Videos

Product Features

Forclaz Trek 500 L, Self-Inflating Hiking Mattress is designed for Our designers, all backpacking enthusiasts, created this mattress to insulate you from the ground and to sleep while backpacking or bivouacking.

1.8 lbs. 70.9" x 20.5" x 1". Self-inflating mattress, comfortable and compact.

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

Easy to transport

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

Sleeping comfort

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


2 to 3 seasons of use (>5°C/41°F). R-Value standard ASTM F3340-18: 2.7

Easy assembly/dismantling

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


Anti-slip silicon pads. Limits slippage of the sleeping bag.


We only dye 1 thread in every 2 to reduce water consumption.

Product Lifestyle Image Gallery

Image Gallery

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,granite 

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,granite 

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,granite 

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,granite 

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,granite 

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,granite 

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,granite 

Forclaz Trek 500 L, Self-Inflating Hiking Mattress,granite

Product Customer Reviews

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675 Reviews
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Forclaz Trek 500 L, Self-Inflating Hiking Mattress,granite
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Comfortable had a good sleep for 3 nights, easy to pack, no complaints from my family members too

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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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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.

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.

Good Deal

very light and said as description ... so easy to handle it either inflation or deflation, love it.

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Hi Lai,

Thank you for supporting Decathlon Hong Kong and your feedback on your experience with our product!

We sincerely appreciate your insight! It's also our pleasure to ensure you have the best experience with our products! 

We can't wait to offer you more and better products in order to delight your sport experiences! 

If you have any more questions, comments, please feel welcome to reach back out as we would be more than happy to share and assist. Hope to see you around soon!

Stay healthy!


Decathlon Hong Kong Hiking & Trekking Team

Camping is fun

Very easy to inflate and , carry , and comfortable

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Light weight, very good quality

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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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I'm impressed with the mattress. Did not expect a 2.5cm thickness of mattress can be so comfy yet firm. More surprisingly even when I sleep on my side, the mattress can still support, I don't feel the ground. Highly recommending this mattress to everyone!

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Dear Chun Chee,

Thank you for your time in leaving us with a 5-Star rating on our product. We are glad that we managed to delight you with the standards of our product. We really appreciate your loyalty with Decathlon. Please let us know if there is anything else we can improve on in the future. Thank you once again for your time and we hope to serve you again soon!


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!"
Супер е

Дюшекът си е идеален. Ползван е в гора на повърхност от тръни и листа, както и върху твърда повърхност със суха трева - достатъчно добра работа върши. Надува се бързо, лесно се събира и учудващо - не е супер трудно да си го прибереш в торбичката за него.

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Additional Product Information



  • 100% Polyurethane

Tent Footprint

  • 50% Thermoplastic polyurethane
  • 50% Polyester cationic

Main fabric

  • 50% Thermoplastic polyurethane
  • 50% Polyester cationic

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 some mouth inflation so you can adjust it to the pressure level suitable for you. Self-inflation is more or less noticeable depending on the thickness of the mattress.

Easy inflation/deflation

When using your mattress for the 1st time, unroll it, open the valve for 24 hours on a flat surface, then inflate it and leave it for 24 hours, valve closed, under pressure. Then you can store it away again. While backpacking, take out and unroll your mattress as soon as you set up camp, valve open to facilitate pre-inflation. A self-inflating mattress inflates to about 60 to 70% on its own. You will need to blow up the rest yourself so you can adjust the pressure to your desired comfort level.

Thermal protection and heat

Since the beginning of 2020, a new standard has been validated to assess the level of insulation of your mattress: standard ASTM F3340-18. This standard measures the capacity of the mattress to retain or return body heat in order to avoid its loss and therefore provide you with thermal comfort. Thermal insulation provided by the foam. R-Value standard ASTM F3340-18 mattress Trek 500 self-inflating: 2.7 (measured by an independent laboratory)

Thermal properties and warmth (2)

The R-Value expresses the thermal performance and resistance of the mattress. The higher the R-Value, the more the mattress insulates you from the cold ground. - R-value from 0 to 1.9: mattress designed for use in warm season (summer) only - from 2 to 3: mattress designed for use in 2 or 3 seasons (spring/summer/autumn) - from 3 to 4: 4 season mattress, winter use possible - higher than 4.5: winter use and extreme conditions

Product test

The sleep comfort, also called "postural comfort," of our mattresses is defined by our R&D center. All our mattresses are subjected to mechanical tests to assess their performance and durability and ensure you enjoy a good night's sleep and an excellent recovery. We also carry out numerous field tests in real-life conditions. Postural comfort is an extremely personal thing. You can adjust the pressure of your mattress.

Sleeping comport, support

To prevent your sleeping bag from slipping on your mattress, the silicone patches must be placed in contact with the sleeping bag.


We have opted to change the color of this product (previous model was blue) to take a step closer to conserving our natural playground. This mattress is now gray as we use a process that dyes 1 thread in 2 of the component, significantly reducing our water consumption and impact. Textile dyeing requires a lot of water but also produces waste water from the dye baths.


An inflatable mattress is not puncture-proof but it can be repaired! For outdoor use, as much care as possible should be paid to its set-up and handling. You can repair your mattress with the following kit: It has the same features and performance while minimizing your environmental impact.



Product testing

All our mattresses undergo mechanical performance and resistance tests to guarantee you the best night's sleep and recovery (thermal and abrasion resistance, etc.). We also carry out several field tests in real-life conditions.

Storage instructions

In order to improve the durability and reliability of your product, store it laid out flat with the valve open in a dry place away from extreme temperatures.

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