Ionosphere 5.5 Sleep Mat Regular OS

This lightweight, minimalist sleep mat makes no compromises when it comes to warmth. Featuring a heat-reflective TILT lining and air-trapping Stratus™ R insulation, this reduces heat loss through both radiation and convection. Ideal for alpinists and adventurers exploring in winter conditions, offering you a comfortable night's sleep on those 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.