The Stratosphere 5.5 is a lightweight and compact sleep mat designed for all-mountain adventures. With an impressive warmth-to-weight ratio, it provides excellent insulation while maintaining a small pack size for trekking, climbing, and backpacking. Featuring recycled Stratus R insulation, it efficiently traps air to minimize heat loss and keep you warm in colder temperatures, ensuring you wake up ready for the day ahead. Equipped with a low-profile two-way valve and a convenient pump sack, inflation is quick and easy when it's time to settle in for the night. The oversized outer chambers prevent you from rolling off, and the spacious rectangular shape accommodates various sleeping positions for a comfortable night's rest. Constructed with 100% recycled insulation and outer fabric, finished with a fluorocarbon-free DWR, the Stratosphere 5.5 is a durable and trustworthy sleep mat, providing reliable comfort and warmth across different seasons. Stratus R insulation traps air and reduces