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Mountain Equipment

Mountain Equipment Aerostat Down 7.0 Sleeping Mat Wide Regular

Mountain Equipment Aerostat Down 7.0 Sleeping Mat Wide Regular

£171.00 £190.00
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The Aerostat is M.E's take on what a perfect sleeping mat should be. With a warmth rating of -40°C, an included Windsock for inflation and a tough nylon outer fabric, it's one of the most advanced mats available. 


Season : 2020W R

Code : 003897-01424

Weight : 0KG

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The Aerostat is M.E's take on what the perfect mat should be. With enough tech to even make our heads melt, this sleeping mat has been designed to offer the highest levels of warmth, comfort and durability in a range of conditions.

Being capable of insulating you down to -40°C doesn't come easily, and simply adding more insulation doesn't quite cut it. On the majority of sleeping mats which are insulated with down, the down would simply fall to the one side of the mat (if lying on a slope), leaving one side super toasty and the other cold as the floor. Mountain Equipment very simply but ingeniously twisted the inner baffles like a string of DNA, meaning the down is held in place no matter what the gradient. Speaking of the insulation, M.E uses pure duck down with a minimum of 700 fill power, ensuring you're kept as warm as possible without the weight penalty. Surrounding this luxurious down is a tough 30D nylon which will cope with years of abuse. 

When it comes to inflating the mat, you can't simply blow into it as the moisture in your breath will eventually rot the down and will negatively impact thermal efficiency, therefore M.E includes a 'Windsock' to inflate the mat. When you blow into the windsock from a slight distance, it draws the dry air in from around you and inflates the mat rapidly and efficiently without introducing moisture inside. This is also hugely beneficial if you're at altitude and the air is particularly thin (you don't want to be blowing up your mat for 10 minutes at 4000 metres). 

Inflation is also far different from most other brands. A singular valve is used to inflate and deflate the mat (don't ask how, magic and fairies...). What this means is when you need to inflate the mat or add a little more air, no existing air will escape, and when you need to deflate the mat, the air escapes in one rapid motion, meaning you can pack up and move without having to sit on your mat for 20 minutes. 

Weighing just 840g and featuring the ability to go down to polar temperatures, the Aerostat really is in a league of its own. A minimal pack size, exceptional warmth rating and low weight make it the perfect mat for just about anyone who loves cutting-edge kit.

  • 2-way inflation/deflation valve
  • Tough 30D outer fabric
  • Down insulation
  • -40°C warmth rating
  • Helix baffle technology (DNA shaped internal tech)
Technical Information

Weight: 840g

Good night sleep guarantee: -40°C

Outer fabric: 30D Nylon

R value: 5.0

Length: 185cm

Thickness: 7cm / 2.8in

Width: 63cm

Sizing Information

Length: 185cm

Thickness: 7cm / 2.8in

Width: 63cm

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Mountain Equipment Aerostat Down 7.0 Sleeping Mat Wide Regular

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Excellent customer service. Really detailed easy to understand product descriptions on the Trekitt website, and gear reviews on the Trekitt YouTube channel made it so easy to choose the right backpack for me.
Emily - May 2020
Amazing service! Very helpful in regards sizing and what most matched my needs, despite this being done over the internet. YouTube videos of products being examined are very useful also. Would definitely use again, very fast and efficient delivery. Brilliant! Highly recommended!
David R - April 2020
Highly recommend. I usually go to the shop in Hereford as staff are alwasy very helpful and knowledgeable. So this was the first time I have purchased online and the service was just as good as the shop.
Grizzy - April 2020


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