Rab Ionosphere 5.5 Sleeping Mat

The Rab Ionosphere 5.5 Sleeping Mat is made for cold-weather missions where comfort and insulation can’t be compromised. A heat-reflective TILT lining works alongside Stratus™ R insulation to lock in warmth and cut down heat loss from both radiation and airflow. It’s warm enough for frozen bivy spots and high-altitude nights, yet still light and compact for long approaches and multi-day climbs. A strong choice for ski tours, winter fastpacking, and serious alpine adventures.

Details: 
- The TILT reflective film inside the mat reduces radiant heat loss, boosting warmth for weight.
- Stratus™ R insulation traps air to prevent heat escaping through convection.
- Soft-touch, lightweight 20D fabric on the upper mat, with a 30D base for added durability on rough ground.
- Oversized outer chambers to keep you central on the mat.
- The versatile rectangular shape is comfortable whatever your preferred sleeping position.
- Inflation and deflation are quick and easy thanks to the low-profile two-way valve and pump sack.

Technical Specifications:
- Weight: 615g/21.7oz (Reg)
- Insulation: Stratus™ R insulation traps air and reduces heat loss from convective currents
- R-Value: 5.5
- Packed Size: Regular: 24cm x 12cm (9.4in x 4.7in)
- Thickness: 8cm
- Dimensions: 183x51cm