Rab Ionosphere 5 Sleep Mat (550g)

Designed for alpine missions where weight is critical, the Ionosphere 5 sleeping mat offers an ultra-light and compact solution, without compromising on essential warmth and comfort. Beneath its minimal bulk lies a host of technical features, including TILT reflective technology to reduce radiant heat loss and Stratus™ R insulation that traps air, limiting heat escape through convection. These features ensure that even in plunging temperatures, the user can rest well and recover fully for the next day’s challenge.

Its tapered mummy shape is tailored to save weight and reduce bulk in the pack. Broad outer chambers are cleverly designed to keep the sleeper centred on the mat, while the soft-touch upper fabric features a graduated grip print to prevent the sleeping bag from slipping during the night. The low-profile two-way valve and included pump sack make inflation and deflation fast and fuss-free.

Constructed entirely with recycled insulation and fabric, and finished with a fluorocarbon-free DWR, the Ionosphere 5 achieves an outstanding warmth-to-weight ratio while remaining a responsible choice for the planet.

Features

• The Stratus™ R insulation effectively traps air, minimising heat loss caused by convective currents.
• The integrated TILT reflective film helps prevent radiant heat from escaping the mat.
• The mat boasts an R-Value of 4.8, offering reliable insulation for cold conditions.
• With a thickness of 8cm, it delivers comfort without excessive bulk.
• Its lightweight design balances air and insulation to offer excellent warmth without a heavy pack burden.
• Oversized outer chambers are designed to help keep the sleeper centred through the night.
• A graduated grip print on the upper surface helps prevent the sleeping bag from sliding around.
• The tapered mummy profile reduces unnecessary weight while maintaining insulation.
• A low-profile two-way valve ensures quick and efficient inflation and deflation.
• The included pump sack allows for rapid and hygienic mat inflation.
• A roll-away stuff sack and repair kit are also included for convenience and on-the-go fixes.
  
  

Sustainability Features

• Fluorocarbon (PFAS) free fabric
• Fluorocarbon (PFAS) free product
• Made with renewable energy
  
  

Specifications

Technology

TILT (Thermo Ionic Lining Technology)

This innovative heat-retention technology functions similarly to an emergency blanket by reflecting body heat back towards the wearer while still allowing for breathability and comfort. By enhancing thermal efficiency, it provides essential warmth when temperatures drop significantly.

Stratus™ R

This durable synthetic insulation is crafted entirely from 100% recycled post-consumer materials. Engineered to trap an optimal volume of air, Stratus™ R offers impressive warmth-to-weight performance. It continues to insulate effectively even when damp and is quick to dry, making it a reliable choice for variable conditions.

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