Therm-a-Rest Hyperion 32F/0C Long Sleeping Bag - Black Forest

The Therm-a-Rest Hyperion 32F/0C Long Sleeping Bag is a premium ultralight mummy bag designed for backpackers and mountaineers who demand warmth without weight. Featuring 900-fill Nikwax Hydrophobic Down RDS, this bag offers exceptional insulation even in damp conditions. The long version accommodates users up to 198 cm (78 in) and provides a comfortable temperature rating of 5°C (41°F) with a limit of 0°C (32°F).

Advantages

Ultralight and compressible, the Hyperion packs down to just 3.5 liters, making it ideal for minimalist adventures. The hydrophobic down treatment ensures loft retention in humid environments, while the 10D nylon ripstop shell and liner provide durability and breathability. The half-length zipper reduces weight and allows for ventilation, and the mummy shape maximizes thermal efficiency.

Suitable for

• Backpacking and thru-hiking
• Alpine climbing and mountaineering
• Three-season camping in mild to cool conditions

Key specifications

• Temperature Rating (EN Comfort): 5°C (41°F)
• Temperature Rating (EN Limit): 0°C (32°F)
• Temperature Rating (EN Extreme): -15°C (5°F)
• Insulation: 900-fill Nikwax Hydrophobic Down RDS
• Fill Weight: 280 g (10 oz)
• Max User Height: 198 cm (78 in)
• Shell Fabric: 10D Nylon Ripstop with DWR
• Liner Fabric: 10D Nylon Ripstop
• Zipper Length: Half-length
• Zipper Side: Left
• Bag Shape: Mummy
• Packed Dimensions: 15 x 20 cm (6 x 8 in)
• Packed Volume: 3.5 Liters
• Shoulder Girth: 157 cm (62 in)
• Hip Girth: 142 cm (56 in)
• Foot Girth: 117 cm (46 in)
• RDS Certified: Yes
• Color: Black Forest
• Included Accessories: Compression Stuff Sack, Storage Sack

Recommendations

For optimal performance, pair this sleeping bag with a lightweight sleeping pad and use the included compression sack to minimize pack volume. Store loosely in the storage sack to maintain loft.