The Therm-a-Rest Hyperion 20 UL Sleeping Bag is bag is lightweight and designed for backpacking and mountaineering. Compressible down insulation and a tapered mummy shape team up to keep weight and packed size to a minimum. 

  • Shell Material: 10D Nylon Ripstop with DWR
  • Lining: 10D Nylon Ripstop ThermaCapture
  • Insulation: 900 Fill Goose Down NHD/RDS
  • Lightweight: The Hyperion is one of the lightest sleeping bags in its class
  • Unrivaled Packability: Lightweight materials and precise design allow for a smaller packed size than ever before.
  • Box Baffled Construction:To maximize thermal efficiency in key areas, we use mesh box baffles to boost loft and eliminate cold spots at the seams of the sleeping bag or quilt.
  • Comfort Fit: Ergonomic shape and longer zipper provide a more human-friendly fit than other ultralight bags.
  • SynergyLink™ Connectors: These removable straps integrate your mattress and sleeping bag to minimize heat loss and keep you secure through the night.
  • Zoned Insulation: Maximizes warmth and saves weight by intentionally placing fill where you need it most, 70% on the top and sides with 30% on the back.
  • Responsible Down Standard Certified
  • Temperature rating: 20 deg. F
  • Fits 6'6" length
  • Fits 58 in. girth
  • Packed Dimensions: 5.5 x 6 in.
  • Weight: 18 oz.
  • Imported
Weight18 oz.
Country of OriginImported
Style Number2059443
Product SKU34004400015
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