Therm-a-Rest Hyperion 20F/-6C Ultralight Down Mummy Sleeping Bag

Designed to provide a feather-light pack weight and high-performance warmth, the Therm-a-Rest Hyperion 20-Degree Ultralight Down Mummy Sleeping Bag is incredibly lightweight without sacrificing an ounce of performance. Built to defy the cold and allow for better rest while moving unencumbered through the mountains, this sleeping bag uses thermally-efficient box baffled construction and ThermaCapture Lining to trap radiant body heat, with zoned insulation that maximizes warmth by placing 70% fill on the top and sides with 30% on the back.

The Hyperion is also Responsible Down Standard Certified, ensuring that the waterfowl in the down supply chain are treated humanely. Crafted with high-quality materials and Therm-a-Rest performance features like SynergyLink Connectors, the Hyperion keeps the pack light, providing freedom to move quickly in the backcountry.

Available in three sizes, the Therm-a-Rest Hyperion 20-degree down sleeping bag offers a tailored fit for various heights. The Small size fits heights up to 5 feet 6 inches and weighs 19 ounces, the Regular size fits heights up to six feet and weighs 20 ounces, and the Long size fits heights up to 6 feet 6 inches and weighs 22 ounces. All three sizes pack down to a compact 6x8 inches, making them highly packable for three-season camping and backpacking.

The Hyperion's 900-fill Nikwax Hydrophobic Down stays drier and maintains loft 60 x longer than untreated down, while the box baffle construction maximizes loft and minimizes cold spots. The ergonomic shape and longer zipper provide a comfortable fit, and the SynergyLink Connectors integrate the bag with a mattress for efficiency and comfort.

Included with the Hyperion are a storage sack and a compression stuff sack, ensuring easy transportation and storage. The sleeping bag is backed by a limited lifetime warranty, demonstrating Therm-a-Rest's commitment to quality and durability.

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