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Forclaz MT500 Air Mattress
You will forget you are carrying it in your backpack thanks to its light weight (1lb. 5oz/585g in this XL size) and compact design! This XL size is perfect for tall people and those looking for space!
Free shipping over $49
Free returns
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San Francisco, 735 Market St. Options
Select an available color and size to see options.
About this item:
- Total weight L / 1lb. 2oz (510g). XL / 1lb. 5oz (600g) Mattress only is 15g lighter.
- Dimensions: L / 71” x 20” x 2” - 1.7 L I XL / 77” x 24” x 2” - 2.4 L
- R-Value: 1.5. Mattress ideal for temperatures > 46°F/8°C.
- Adjustable pressure by pressing the IN valve
Product Features

Easy to transport
Total weight 1lb 5oz (600g/585 for the mattress only). Volume: 2.4 liters
Sleeping comfort
Dimensions 76.8 x 23.6 x 2 inches. Adjustable pressure by pressing the IN valve
Thermal insulation
R-Value: 1.5. Ideal for temperatures > 46.4°F (8°C).(ASTM F3340-18 standard)
Easy assembly/dismantling
Inflate by mouth. Dual valve with non-return system (IN valve).
Traction
Anti-slip silicon pads. Limits the sleeping bag from sliding
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Product Customer Reviews
five years later, still in good condition (with occasional use, a few days a year). just what you need for light hiking
Used for 1 week on a bike trip. No worries about the product quality, light and easily transportable. However, we slept very badly on it. The second mattress we brought, a 2 cm thick self-inflating Decathlon mattress that is over 10 years old, was much more comfortable. On this model, you can feel the tubes even when you are careful with the inflation, we were cold with it even at the end of June. I will give it a second chance with a foam mattress on top to see if it is better.
A successful purchase. It worked well on bikepacking.
Small enough to take everywhere, very light, easy to inflate, very comfortable!!!
I tried it in a bivouac, so far all ok. Positive experience. It takes a bit of practice to fold it.
good value for money
The sleeping pad is very comfortable to sleep on. It is a little harder to get into the original packaging. It takes a little fiddling with it. I can't judge the thermal insulation because it was only used in the summer.
Really good mattress, I use it in a hammock where thanks to many chambers it fits well to the bend of the hammock. The length is also a big plus - it's hard to find such a long mattress at a good price. And the size after folding is a huge plus, it takes up very little space which is very important on bike trips :)
A real inflatable mat does its job perfectly. Even though I put a mat underneath it in cold weather, it still draws cold air from underneath, but that's okay :)
The product does not take up space and is easy to inflate and return to its original state, making it ideal for warm weather. If it is to be used in winter months, you should definitely use a base.
excellent, comfortable, small package size, average weight
Swap with MT500 Air Insulator for added insulation
A great mattress to start your adventure with tent trekking
It is lightweight, easy to pack and provides good insulation from the ground, which has proven itself in all conditions, especially in the mountains. The quality of workmanship is high, and the material is solid and resistant to damage. It is easy and quick to inflate and deflate. I highly recommend it.
Very good value for money
Additional Product Information
Composition
Main fabric: 57.0% Thermoplastic Polyurethane, 43.0% Polyester ; Carry bag: 100.0% Polyester
How to choose the size of your mt500 mattress
This model is available in L and XL version. The difference between the 2 sizes on the length (180 cm for the L; 195 Cm for the XL) and width (52 cm for size L; 60 cm for the XL).To choose the mattress that best suits you, you must consider your stature, but not just that. Your preference and/or your preference for space around your shoulders should also be considered. So, even if you are 1.75 cm, you will prefer the XL!
Tips for sleeping well on your mattress
Once you are lying down, remember to adjust the inflation pressure of the mattress by slightly pressing the IN valve (open cap). A mattress that is too hard is often synonymous with discomfort.Silicone patches on the top of the mattress are designed to reduce the sliding of your sleeping bag on the mattress.
How to easily fold the mt500 air mattress?
The easiest way to fold your mattress without damaging it is to fold it in four lengthwise, then roll it up.
How to repair a leak on your mt500 air mattress?
An inflatable mattress is not puncture-proof but it can be repaired!When using it, take every care when installing and handling it. In the event of a problem, we recommend using self-adhesive repair patches (ref: 8557113).For more information, copy the following link into your browser:https://www.forclaz.co.uk
What is the r-value?
The R-Value is a measure of the thermal insulation. It measures the ability of a mattress to retain or prevent heat from escaping from a warm body (human body) to a cold floor.The higher the R-Value, the better the insulation of the mattress.Please note that the R-Values can be added; this means that you can use two mattresses and add their R-Values.All our mattresses are tested to standard ASTM F3340-18.
What r-value for what use?
R-value from 0 to 1.9: Hot season (summer) onlyR-value from 2 to 3: Use over 3 seasons (spring/summer/autumn)R-Value from 3 to 6: Use over 4 seasonsR-Value > 6: Use in all 4 seasons and in extreme conditions (glacier, far north and high altitudes)
Volume and folded size
Folded dimensions Ø 4.1 Inch x 11 Inch.Volume: 2.4 liters. Weights, volumes & dimensions may vary slightly due to production tolerances.
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

Forclaz MT500 Air Mattress
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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.
