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
- 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 Trek 500L Self-Inflating Backpacking Mattress
1.8 lbs. 70.9" x 20.5" x 1". A self-inflating mattress that is comfortable and compact.
Free shipping over $49
See our return rules
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
Product Videos
Product Features

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 1.2”. Thermal insulation. Adjustable comfort.
Warmth
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.
Traction
Anti-slip silicon pads. Limits slippage of the sleeping bag.
Product Lifestyle Image Gallery
Image Gallery





Questions & Answers
There are no questions
Be the first to post a question
Product Customer Reviews

Easy to use, comfortable and provides a great night sleeo
Great products , real value for money compared to the other competition that we have endured for decades & have been ripped off just as long
Comfortable had a good sleep for 3 nights, easy to pack, no complaints from my family members too
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.
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.
So disappointed! just received - my son was supposed to take this inflatable mat for his silver Dofe expedition and this is useless. It does ot inflate at all. I am goinfg to return it.
Looked great and inflated easily. Wondered why it deflated so quickly and found a big hole in it. Good job I tested it before my trip!
Comfy. Yet to try in cold conditions. Needs more encouragement to inflate than I was hoping for. This may improve now it's been inflated a few times.
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.
Lightweight
Hi Ka Wai,
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 sports 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!
Icy Chan
Decathlon Hong Kong Hiking & Trekking Team
I've experienced camping in Hong Kong for the first time with this mattress. It's super light! Really easy to inflate (less than 2 minutes) and perfect to sleep.
Hi Julie,
Thank you for supporting Decathlon Hong Kong and your feedback on your experience with our product!
We sincerely appreciate your insight! Thank you for your feedback and we will pass it to the product design department for reference, in order to build better offers in the future!
Our designers created this mattress to insulate you from the ground and sleep comfortably.
We can't wait to offer you more and better products in order to delight your sports 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!
Ken
Hiking and Trekking team
Not bad
Hi Tsz Chuen,
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!
Carmen
Decathlon Hong Kong Hiking & Trekking Team
very light and said as description ... so easy to handle it either inflation or deflation, love it.
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!
Carmen
Decathlon Hong Kong Hiking & Trekking Team
Too good on the trek, camping and etc.
its amazing
Additional Product Information
Composition
Foam: 100.0% Polyurethane ; Tent Footprint: 50.0% Thermoplastic polyurethane, 50.0% Polyethylene Terephtalate ; Main fabric: 50.0% Thermoplastic polyurethane, 50.0% Polyethylene Terephtalate ; Carry bag: 100.0% Polyethylene Terephtalate
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 (1.2” 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/fall)- 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.
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.
Origin
Imported
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
-
Research and development
delivers high-quality cost-effective products
-
State-of-the-art production processes
minimize manufacturing costs
-
Optimized supply chain
reduces retail prices
-
Minimal retail footprint
lowers overhead and indirect costs

Forclaz Trek 500L Self-Inflating Backpacking Mattress
Your location: City, ST
Please enter a valid city with state or zipcode. Example: San Francisco, CA or 94101
Order online for
Heavy products return policy
If you return a product you will receive a refund for the purchase price plus any applicable sales taxes, less any non-refundable charges.
Decathlon will cover all shipping costs associated with your return except for items excluded from our return policy such as bikes, basketball hoops, snowboards, surfboards, tents, and other larger / heavier items.
Return costs for heavy products:
Weight Thresholds | Shipping within California | Shipping outside of California |
---|---|---|
> 9 lbs | $20.00 | $25.00 |
> 30 lbs | $50.00 | $65.00 |
> 100 lbs | $100.00 | $125.00 |
> 200 lbs | $200.00 | $230.00 |
If you return a product at any of our store locations, we will gladly help you find the best alternative product or refund you on the spot.
