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Rab Ionosphere 5.5 Sleep Mat 2026

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Rab Ionosphere 5.5 Sleep Mat 2026

Features
  • Weight: 615g/21.7oz (Reg)
  • Insulation: Stratus™ R insulation traps air and reduces heat loss from convective currents
  • Dimensions: Regular: 183cm x 51cm x 8cm. Long wide: 196cm x 64cm x 8cm.
  • R-value: 5.5
  • Packed size: Regular: 24cm x 12cm (9.4in x 4.7in). Long wide: 29cm x 14cm (11.4in x 5.5in)
  • Product code: QMA-11

Engineered with precision to deliver exceptional warmth in a compact size, this insulated air mat is ideal for alpinists and adventurers exploring in winter conditions. With a heat-reflective TILT lining and air-trapping Stratus™ R insulation, it reduces heat loss through both radiation and convection, offering you a comfortable sleep on frozen bivi ledges and clear nights at altitude. Low on weight, high on comfort, it thrives on long-distance ski tours, winter fastpacking trips, and multi-day ascents.

  • 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.
  • R-value: 5.5.
  • Thickness: 8cm.
  • Roll-away stuff sack with repair kit included.
  • Dimensions: Regular 183x51cm. Large 196x64cm.
  • Packed size: Regular 24x12cm. Large 30x14cm.
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From $248.04
Rab Ionosphere 5.5 Sleep Mat 2026—
$248.04

Product Information

Shipping & Returns

Description

Features
  • Weight: 615g/21.7oz (Reg)
  • Insulation: Stratus™ R insulation traps air and reduces heat loss from convective currents
  • Dimensions: Regular: 183cm x 51cm x 8cm. Long wide: 196cm x 64cm x 8cm.
  • R-value: 5.5
  • Packed size: Regular: 24cm x 12cm (9.4in x 4.7in). Long wide: 29cm x 14cm (11.4in x 5.5in)
  • Product code: QMA-11

Engineered with precision to deliver exceptional warmth in a compact size, this insulated air mat is ideal for alpinists and adventurers exploring in winter conditions. With a heat-reflective TILT lining and air-trapping Stratus™ R insulation, it reduces heat loss through both radiation and convection, offering you a comfortable sleep on frozen bivi ledges and clear nights at altitude. Low on weight, high on comfort, it thrives on long-distance ski tours, winter fastpacking trips, and multi-day ascents.

  • 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.
  • R-value: 5.5.
  • Thickness: 8cm.
  • Roll-away stuff sack with repair kit included.
  • Dimensions: Regular 183x51cm. Large 196x64cm.
  • Packed size: Regular 24x12cm. Large 30x14cm.