The Aeris R4.5 was developed using years of customer feedback and real-world field use. Campers consistently asked for more sleeping space, increased support, and reduced pack weight - without compromising warmth or durability. The Aeris delivers on all fronts.

The Aeris R4.5 is 25% wider, 20% longer, and 30% thicker than our previous mat, providing a significantly larger and more supportive sleep surface. Despite the increased dimensions, the Aeris remains lightweight at just 580g, achieving a 10% weight reduction through the use of a 20D micro-ripstop nylon.

HeatCell technology uses aluminium cotton insulation to trap warm air within the mat, reducing heat loss to the ground and improving thermal efficiency in cooler conditions.

Our Guard Rail technology uses raised, contoured edges to help stabilise your sleeping position and minimise lateral movement during the night. Combined with a 100mm overall thickness, this design improves comfort and pressure distribution across uneven ground.

The integrated SleepLock system allows secure attachment of the Altus Lightweight Inflatable Pillow (sold separately).

Designed to maximise comfort, warmth, and pack efficiency, the Aeris R4.5 mattress delivers a technically refined, 3-season solution for a restorative night's sleep outdoors.