Rab Ionosphere 5.5

Rab Ionosphere 5.5 mattress Regular

The compact inflatable mattress is equipped with the breakthrough TILT heat reflecting technology. The Stratus™ R inner insulation traps air and is designed to provide unmatched comfort for climbers and mountaineers in the world's harshest conditions. High-end product.

Main parameters of the Regular version

• dimensions: 183 x 51 cm
• Thickness: 8 cm
• weight: 690 grams
• thermal resistance value R: 5,5

Are the dimensions too small for you? You can get a larger version of the Long Wide - link below the article.

R value: 5,5

The thermal resistance of your sleeping mattress indicates how well it resists heat loss. A higher R-value means it will insulate you more effectively from the ground and will be more suitable for cold environments.

Designed for extreme temperatures and harsh environments, the Ionosphere 5.5 is fully equipped with technologies to protect you from the cold. Its design reduces heat loss through radiation and airflow. This is all thanks to heat-reflective TILT technology and air-trapping Stratus™ R insulation.

With an excellent warmth-to-weight ratio and small pack size, it's the perfect, high-comfort air mattress for climbers and mountaineers who need to be sheltered in some of the world's harshest conditions.

The mattress features clever details to maximize your comfort, including enlarged chambers at the edges to keep you centered in the mattress and a grippy print that reduces sleeping bag slippage.

The fabric is pleasant to the touch and the versatile rectangular shape ensures you can rest comfortably in whatever position you prefer when sleeping. A low-profile two-way valve and handy inflatable bag allow the mattress to be quickly inflated when the temperature drops and you want to sleep.

The Ionosphere 5.5 is made from 100% recycled insulation, recycled fabric and fluorocarbon-free DWR material. From freezing bivouacs to alpine launches, it will keep you comfortably refreshed wherever you camp.

Details of the mattress

• Main fabric: 20D recycled polyester outer fabric with TPU inner layer and fluorocarbon-free DWR.
• Stratus™ R 100% recycled polyester 200 g/m2 with TILT insulation.
• Stratus™ R insulation traps air and reduces heat loss due to convection.
• The reflective TILT film inside the insulation helps reduce heat loss through radiation.
• Lightweight construction utilizes air and insulation for excellent warmth-to-weight ratio and minimal pack size.
• Enlarged edge chambers help keep your position on the car mattress centered.
• Graduated grippy finish with printed top fabric reduces sleeping bag slippage.
• Rectangular shape allows for a variety of comfortable sleeping positions.
• Low-profile two-way valve for easy inflation and deflation.
• Includes a bag for quick and hygienic inflation.
• Repair kit included.

Introduction of Rab mattresses

Stratus™ R

Flexible synthetic insulation developed from 100% post-consumer recycled material. Designed to trap as much air as possible, Stratus™ R insulation has excellent warmth for its weight, retains heat even when wet and dries quickly.