About the ThermaRest Hyperion 20F/-6C
The Hyperion 20F/-6C sleeping bag gives you an ultralight design that’s loaded with performance-enhancing features with a temperature rating that keeps you cosy when the temps dip.
Crafted for the outdoor minimalist, the Hyperion features an Ultralight Fit, streamlined to a narrow silhouette for a weight-saving design and unrivalled packability. Zoned insulation saves weight by placing down fill in key areas for an optimum warmth-to-weight ratio while a 10D nylon ripstop liner and DWR shell keep the pack weight low.
A 900-fill Nikwax Hydrophobic Down continues to insulate even when damp while maintaining loft 60 times longer than untreated down and drying 3 x faster – all without the use of PFCs. A Responsible Down Standard certification ensures all down fibres are sourced humanely.
SynergyLink™ Connectors on the bag’s underside let you integrate the Hyperion with a sleeping pad to create a complete all-weather sleep system. This is great for added warmth and to ensure the mattress remains beneath you – especially in colder climes. Pad connectors can be removed for convenience.
The Hyperion also features a cinchable hood, heat-trapping draft collar and zipper baffle for maximum heat retention with a snag-free zip for hassle-free access.
With a pack weight of just 577g (regular), the Hyperion 20F/-6C sleeping bag has been optimised for the fast-moving adventurer looking for comfort through full 3-season camping and trekking.
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- Best Use: 3+ Season | Backpacking | Camping | Trekking | Climbing
- Insulation: 900 Fill Goose Nikwax Hydrophobic Down RDS
- Fill Weight: 360g | 13 oz
- Shape: Mummy
- Zip: Left hand
- Total Weight: 577g | 1 lbs 4 oz
- Dimensions (Shoulder/Hip/Foot): 145 x 126 x 109 cm | 57″ x 49.5″ x 43″
- Length: 203 cm | 80″
- Max User Length: 183 cm | 6’0″
- Packed Size: 15 x 20 cm | 6″ x 8″
- Shell: 10D Nylon Ripstop w/DWR
- Lining: 10D Nylon Ripstop
- Comfort Range: 32°F | 0°C
- Lower Limit: 20°F | -6°C
- Extreme (Risk Range): -9°F | -23°C

























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