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Forclaz Trek 500 XL, Self-Inflating Backpacking Mattress

Sale price: $44.99 Regular price:

2.2 lbs. 76" x 23.6" x 1". Extra-large self-inflating mattress that is comfortable and compact.

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Sale price: $44.99 Regular price:

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Model: 8352448

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Product Features

Forclaz Trek 500 XL, Self-Inflating Backpacking Mattress | Our designers,all backpacking enthusiasts,created this mattress to insulate you from the ground & to sleep while backpacking or bivouacking.Extra large version.

2.2 lbs. 76" x 23.6" x 1". Extra-large self-inflating mattress that is comfortable and compact.

A photo of the Forclaz Trek 500 XL, Self-Inflating Backpacking Mattress in use

Easy to transport

Weighs 2.2 lbs. Volume: 9 liters. Ø 7.3" x 15.7". Carry bag.

Sleeping comfort

Dimensions 76" x 23.6" x 1". Thermal insulation. Extra large self-inflating.


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

Easy assembly/dismantling

Self-inflating. Bi-valve effective and non-return. Adjustable comfort.


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 XL, Self-Inflating Backpacking Mattress,granite 

Forclaz Trek 500 XL, Self-Inflating Backpacking Mattress,granite 

Forclaz Trek 500 XL, Self-Inflating Backpacking Mattress,granite 

Forclaz Trek 500 XL, Self-Inflating Backpacking Mattress,granite 

Forclaz Trek 500 XL, Self-Inflating Backpacking Mattress,granite 

Forclaz Trek 500 XL, Self-Inflating Backpacking Mattress,granite 

Forclaz Trek 500 XL, Self-Inflating Backpacking Mattress,granite 

Forclaz Trek 500 XL, Self-Inflating Backpacking Mattress,granite

Product Customer Reviews

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Forclaz Trek 500 XL, Self-Inflating Backpacking Mattress,granite
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Never Again

I bought one of these hopeful of a good nights sleep, unfortunately it wouldn't stay inflated, when I got home I filled a bath with water to find out where it was leaking. To my surprise it was more like where it wasn't leaking, all the corners leaked in numerous places top and bottom where the seam meets the inflated area, 33 holes in total. When I tried to return it to the store I bought it from I was told by the Customer Asst. that it wasn't for water use and as I had exposed it to water I couldn't get a refund or replacement. When I asked to speak to the manager the Customer Asst. called the security staff over and had me removed from the shop. This is the worst customer experience I have ever had! My recommendation is to not buy from this company ever!

Amazingly comfortable

Unlike the regular thick air bed, this thin layer of mattress requires min effort of inflating/deflating which makes it so convenient to carry around. It's perfect for picnic, overnight camping or airport layover. Surprisingly the non slippery texture is also very comfortable to lie on. So far i have only tried it on flat surface, not sure if it is suitable to be used on rough and uneven terrain.

light and easy to use

Light enough to carry. Easy to inflate. Keeps you warm. It’s not as soft as other inflatable beds. Can be uncomfortable if you are a side sleeper but it will do. The convenience of less things to take with you is a plus. Also looks durable

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Worth it! Durable!

Bought ours October or Nov 2017 and still works fine. Bought this for an out of town trip since we need to save space in our luggage. It was worth it and we have been using it ever since. Downside to this product is that the "self inlating" part take a long time we needed to pump/blow in air a few times to get it inflated which didn't take much effort anyway, the cap/opening sometimes leak air you just have to secure it everytime. We lost our drawstring pouch/bag since a few months back but overall.. It served its purpose and I think its worth the price and worth purchasing


spaní na ne úplně rovném povrchu skvělé výplní

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Vyzkoušel jsem jednou a zatím jsem plně spokojen

S produktem jsem plně spokojen. Splnil mé očekávání.

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Samonafukovací matrace xxl

Po několikadenním odzkoušení, je super, akorát se hůře vyfukuje, ale jinak není co vytknout, poměrně velmi dobře skladná

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dlouhá karimatka


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Karimatku jsem zakoupila na letní fesťák a velmi mě překvapila. Spalo se na ní dobře, byla měkká i přes nerovnosti terénu jsem nic necítila.

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skladná, pohodlná a neklouzavá díky gumovým hvězdičkám

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Matrace 500 XL

S produktem jsem vělice spokojená. Samonafukovací matrace dobře izoluje, je skladná a je u ni použit velice jednoduchý způsob nafukování a vyfukováni. Doporučuji.

vyborna koupe

Rychle se nafukuje a vyfukuje, je super skladna a vyborne pohodlna

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Obstála dva týdny v Norsku. Spí se na ní pohodlně.

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kürzer als angegeben

Leider ist die Matte XL nicht 195 wie angegeben, sondern nur knapp 190 cm lang, wenn man einen Meterstab darauf legt. ..und leider stehen bei meinen 185 dann die Füsse über. Vom Packmaß und Gewicht ist die Matte leider auch nicht so richtig leicht und klein. Da ich genau das fürs Radfahren suche, leider nicht das richtige für mich.

Hallo Sorin,

vielen Dank für deine Bewertung zu der Selbstaufblasende Isomatte Trek 500 XL blau.

Wir bedauern sehr, dass du mit diesem Produkt unzufrieden bist. Wir haben dein Kommentar an der Marke weitergeleitet, um es zu prüfen und verstehen, wo der Fehler liegt. Für den Packmaß des Produktes wäre diese Isomatte vielleicht eine gute Alternativ.

mit sportlichen




nichts für mich

Oben breit unten schnall

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Hallo Martin,

danke, dass du die selbstaufblasende Isomatte Trek500 von Forclaz bewertet hast. Wir bedauern, dass du mit deinem Produkt nicht zufrieden bist.

Die Matratze ist absichtlich oben breit und unten schmal, da im Gesamten an Gewicht und Platz gespart werden möchte. Die Matratze ist für Trekkingreisen mit Rucksack konzipiert, daher das schmale Maß. Für komfortablere Isomatten empfehlen wir dir unsere "Campingmatratzen", z.B. die selbstaufblasende Isomatte Camping Komfort unter 8352100.

Gerne kannst du unsere Produkte auch 30 Tage lang testen, um dich von ihnen zu überzeugen.

Bis bald in deinem DECATHLON oder auf!

mit sportlichen Grüßen



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Additional Product Information



  • 100% Polyurethane

Tent Footprint

  • 50% Thermoplastic polyurethane
  • 50% Polyester cationic

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 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 (continued)

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 "bi-ton" 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.



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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