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Backpacking US Inflatable Mattress - MT500 Air S - 120 x 52 cm - 1 Person
If you are looking to save every gram, this ultra-lightweight (360 g) and extremely compact mattress is for you. Please note: basic comfort.
Free shipping over $49
Free returns
Free pickup
San Francisco, 735 Market St. Options
Select an available color and size to see options.
About this item:
- R-Value: 1.6 I Ideal for temperate and hot environments (>46°F)
- Weight 12.7 oz (360 g) I Volume: 1.2 L I Carry Bag Included
- Dimensions: 47.2” x 20.5” x 2”
- Easy assembly/dismantling: Inflate by mouth. Efficient 2-way valve with anti-return for easy handling.
Product Videos
Product Features

Easy to transport
Weighs 360g. Volume: 1.2 litres. Travel bag
Sleeping comfort
Size 120 x 52 x 5 cm. Short size. Small sleeping area. 8 tubes
Thermal insulation
R-Value: 1,5. Mattress ideal for temperatures > 8 °C.(ASTM F3340-18 standard)
Easy assembly/dismantling
Inflate by mouth. Bi-valve effective and non-return. Adjustable comfort
Traction
Anti-slip silicon pads. Limits the sleeping bag from sliding
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Product Customer Reviews

Ok - the comfort is obviously not incredible but at this price, for the weight and size, it remains a good product
Practical for hiking and roaming to lighten the bag. Good insulation but add a bag under the legs for better insulation especially at altitude
Very compact. A bit short but otherwise comfortable
very good, my daughter uses it to go to the field
Good product
Very compact but average thermal insulation and comfort not at the top
4 week trekking, defective mattress after the 3rd night. That of a friend at the end of the 5th grade. The mattress deflates. Decathlon hammock that tears after a week. Bottom line, slept poorly but now I know where I will no longer buy my trekking equipment
Used on several treks, no punctures. Basic comfort... Perfect for those who don't care or want to save weight! Not tested in winter conditions, however I do not recommend it, risk of having cold legs which will be in direct contact with the ground.
Compact, lightweight, quick to inflate Only advantages
Without mistreatment by conscientiously storing it in my bike bag, I was only able to sleep on this mattress for one night. It deflated at the start of the second use. Which caused me problems for my trek. The store did not want to refund me or take back my mattress.
Use together with regular bedding. Saved my back!
Deflates over time
The mat is very compact, enough for a couple of nights
Just an ordinary inflatable and very compact mini mat, in combination with a small tarpaulin and a fleece blanket or a light sleeping bag, for example as a necessary light rescue element not only for the bike in case of shipwreck. The mat is not the most suitable for tall figures, average and especially smaller ones can lie down on the mat in peace or just stretch their backs so that they don't get cold or suffer on uneven terrain with their feet touching the ground. The big advantage is when the mat is packed, the disadvantage is the more limited dimensions when inflated, for more sleeping and when it is possible to carry an extra three blankets, I usually recommend the long version, on the contrary, when space and weight are a problem, there is no competition, despite the fact that this type of mat is not to the cold, damp ground where it gets cold faster.
Alright. Weight and volume
Additional Product Information
Composition
Main fabric: 57.0% Thermoplastic Polyurethane, 43.0% Polyester ; Carry bag: 100.0% Polyester
Volume and folded size
Dimensions folded Ø 8.5 cm x21 cm. Volume: 1.2 litres.
Easy inflation/deflation
The simplest way to fold without damaging your mattress is to fold it in four widthways, then roll it up.
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: 2 or 3-season (spring-summer-autumn)R-value from 3 to 4: 4-seasonR-value of 4.5 and higher: Use in all 4 seasons and in extreme conditions (glacier, far north and high altitudes)
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.
Additional sustainable development information
Textile dyeing requires a lot of water but also produces waste water from the dye baths. To reduce the environmental impact of this model, we chose to use a dyeing process called ”bi-ton” which involves dyeing one out of every two yarns. This dyed yarn is also made from a bulk dyeing process which incorporates the colour pigments from the yarn manufacturing phase onwards.This process reduces the CO2 emissions of this product.
How to repair a leaky 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
Product testing
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.
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
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Research and development
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Backpacking US Inflatable Mattress - MT500 Air S - 120 x 52 cm - 1 Person
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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.
