Mountain Equipment Aerostat Synthetic 9.0 Sleeping Mat Wide Long (R4.0) - Clearance

The Aerostat Synthetic 9.0 Mat Wide Long is a synthetically insulated sleeping mat built for those who want high levels of warmth and exceptional comfort without the weight penalty of a traditional mat. Welded 160 g/m² Polarloft insulation is distributed through vertically aligned baffles, delivering consistent warmth across the full surface. At 9.0 cm thick and with an R Value of 4.0, it is a strong choice for three-season backpacking and trekking where comfort and packability both matter.

The recycled 30D ripstop polyester shell with TPU lamination keeps the pack size impressively small, while the 2-way self-sealing Gas Mask valve makes inflation and deflation quick and easy. The included Windsock inflates the mat rapidly and doubles as a lightweight stuff sack, and a repair kit is also supplied.

Ideal For

Backpacking and Trekking

Features

Insulation

• Welded 160 g/m² Polarloft for maximum insulation
• Vertically aligned baffles

Materials

• Recycled 30D ripstop polyester with TPU lamination

Design

• 2-way self-sealing Gas Mask valve for inflation and deflation
• Supplied Windsock inflates mat easily and doubles as lightweight stuff sack
• Supplied with repair kit
• R Value: 4.0, tested to ASTM F3340

Specifications

Technology

	Polarloft Polarloft is Mountain Equipment's own synthetic insulation, offering an excellent warmth-to-weight ratio, a small pack size, and performance optimised for its intended use.
	Fair Wear Mountain Equipment is a member of the Fair Wear Foundation, an independent, non-profit organisation that works with brands and factories to improve working conditions for garment workers.