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Forclaz MT900 Comfort Air Mattress

Sale price: $109.00 Regular price:

At 2.4 inches thick, the MT 900 Air mattress is very comfortable. It's also lightweight (1lb. 4.5oz/580g). The bag is used as a pump bag for easier inflation!

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Sale price: $109.00 Regular price:

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San Francisco, 735 Market St. Options

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About this item:

  • Dimensions 70.9” x 22” x 2.4”. Rectangular shape. Smooth surface
  • Use during the summer season. R-Value 1.4
  • Weighs 1lb. 4.5oz (580g). Volume: 2 liters. Carrying pouch that turns into a pump
  • Inflate with the built-in pump bag. Bi-valve: IN with anti-reverse - OUT deflate
Model: 8883440

Product Features

A photo of the Forclaz MT900 Comfort Air Mattress in use
A photo of the Forclaz MT900 Comfort Air Mattress in use

Forclaz MT900 Comfort Air Mattress | Our design team of trekking enthusiasts has created this inflatable mattress to provide restorative nights after the day’s activities!

At 2.4 inches thick, the MT 900 Air mattress is very comfortable. It's also lightweight (1lb. 4.5oz/580g). The bag is used as a pump bag for easier inflation!

Easy to transport

Total weight 580 g (mattress only 530 g). Volume: 2 litres. Travel bag

Sleeping comfort

Dimensions 180 x 56 x 6 cm. Rectangular shape. Smooth surface

Thermal insulation

Use during the summer season. R-Value 1.4 according to standard ASTM F3340-18

Easy assembly/dismantling

Inflate with the built-in pump bag. Bi-valve: IN with anti-reverse - OUT deflate


Anti-slip silicone patches on both sides. Limits slipping

Questions & Answers

Product Customer Reviews

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21 Reviews
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Good products

Good products

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Very satisfied with the product

Very satisfied with the product

Very mixed

Used for 3 months during a bivouac tour of Southeast Asia (2/3 of the time), I am overall not satisfied with this product. For the positive points: - the inflator/packaging is always very practical - low volume in the bag - super light Negative points: - the insulation is not great for the price of the product - the material of the mattress is not great neither, it is particularly very noisy when moving in the night (used in the MT500 mesh tent), unpleasant for you and your neighbor - the material does not seem very resistant to me, after 2 months, the mattress is slightly deflated in the early morning and rather uncomfortable

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GR 736

No more worries about this branch not seen when setting up the tent, and which is discovered when you close your eyes... excellent mattress, used on part of the GR 736 this May. in 5 blows, it is completely inflated, without any effort, and no need to blow hard. On the other hand, perhaps make a modification: when I want to unhook the inflation bag, I am always afraid of tearing the said bag. the mouth which snaps onto the mattress being stuck to the fabric of the pocket, if you slip, you can remove the canvas from the mouth

There are inflatable sleeping mats available at this price, so you don’t have to worry about replacing them.

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Product ok

The mattress itself is good, but not suitable for my taste, the material is quite noisy, decent comfort An XL version would be ideal

MT900 Inflatable Mattress

very good mattress, comfortable, light and easy to store, also easy to inflate thanks to the integrated inflation bag. I recommend

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The inflatable method is very convenient. It is more stable when sleeping.

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Compact, light and comfortable.…

Compact, light and comfortable. Easy to inflate and store


Very light mattress with a very interesting grip concept

Fragile mattress

I bought this mattress because it has a promising new look which promises superior comfort to the other model in their range Unfortunately I didn't have time to try it from the first use I found myself on the floor in the middle of the night impossible to find the cause I tried several times to reinflate it to check the valves nothing in the end I recommend against it

very light and compact

my daughter used it this summer and really appreciated its ease of storage, its weight

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Very comfortable

More comfortable than significantly more expensive premium brand models that I have had before. Less feeling of “rolling” when moving at night. A little heavier too, but with this thickness I suppose that's normal. Obviously a little dusty after a few uses, but it's acceptable and it's for a good cause. The double valve is practical and seems an a priori reliable solution - which was not the case on all the models I had.

Excellent price/quality ratio.

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Missing the same mattress…

Missing the same mattress with thermal insulation

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Additional Product Information


Main fabric: 50.0% Polyurethane, 50.0% Polyamide

How to choose the size of your mt900 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 (56 cm for size L; 63 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!

How to inflate your mattress

To prevent moisture from being blown into the mattress, we recommend that you use the pump bag in the pouch.To do this, unroll the entire pump bag/pouch. Connect the valve of the pump bag to the “IN” valve of your mattress. Blow to about 10-20cm from the inlet of the pump bag, to inflate the main volume as much as possible. Roll the bag on itself to the valve to push the air out of the main bag into your mattress.

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.Other patches on the underside reduce the slippage of the mattress on the floor of your tent.

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).More care advice is available on the Decathlon Sport Advice website.

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.It should be noted that R-Values add up; this means that you can use 2 mattresses and add up their R-Value.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 9 cm x 30 cm.Volume: 2 litres.

Storage instructions

To ensure that your product lasts for a long time and that it continues to work as it should, store it flat, valve open, in a dry, temperate place.




Size Guide Visual

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