Therm-A-Rest Hyperion 32 UL Sleeping Bag
PEAK PERFORMANCE FOR ULTRALIGHT ADVENTURES: THE HYPERION 32 UL SLEEPING BAG
The 453g Therm-A-Rest Hyperion 32 UL Sleeping Bag provides peak performance for ultralight adventures.
Storage sack and compression stuff sack included
FEATURES OF THE THERM-A-REST HYPERION 32 UL SLEEPING BAG
- Ultralight: One of the lightest pieces in its class, the Therm-A-Rest Hyperion 32 UL Sleeping Bag sets a new standard for high-performance outdoor equipment.
- 900-fill Nikwax Hydrophobic Down™: Stays drier and maintains loft 60 times longer than untreated down.
- Unrivalled Packability: Lightweight materials and precise design allow for a smaller packed size than ever before.
- Box Baffled Construction: Uses mesh walls to maximise loft and minimise cold spots in key areas.
- Comfort Fit: Ergonomic shape and longer zipper provide a more human-friendly fit than other ultralight bags. SynergyLink™
- Connectors: Integrate the bag with a mattress for optimal efficiency and comfort; removable for versatility.
- Zoned Insulation: Maximises 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: Certification that ensures that the waterfowl in the down supply chain are treated humanely.
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Size + Specifications
Regular
-Weight: 453g
-Width: 72cm
-Length: 203cm
-Fits: 183cm
-Girth: Shoulder - 145cm
Hip - 126cm
Foot Box - 109cm
-Packed Dimensions: 14cm x 15cm
Zip side - Left
Long
-Weight: 520g
-Width: 74cm
-Length: 216cm
-Fits: 198cm
-Girth, Shoulder: 147cm
Hip: 130cm
Foot Box - 117cm
Packed Dimensions - 14cm x 15cm
Zip side - Left
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What we think
The Hyperion sleeping bag has become one of our go-to pieces of gear for three-season camping. One of its smartest design features is the reduced insulation on the base—just 30%—which makes sense since the underside is compressed when you sleep, reducing its effectiveness anyway. To keep the warmest part of the bag on top, there are two ribbons that loop around your sleeping mat, which works surprisingly well and keeps everything in place all night.
The 900-fill-power Responsible Down Standard-certified Nikwax Hydrophobic Down is seriously impressive. It’s incredibly light yet retains warmth effectively, even in damp conditions. The box-wall construction and the DWR-treated 10D nylon ripstop shell give the bag a premium feel; the silky-soft fabric is a nice touch, especially after a long day outdoors.
We’ve found the temperature ratings to be pretty spot-on. With a comfort rating of 5°C and a limit of 0°C, it’s ideal for most of my trips. If you sleep warm, it can even handle milder winter conditions. At just 453g, it’s ridiculously lightweight for what it offers, and it doesn’t feel like I’m sacrificing comfort or warmth for the sake of weight savings.
Overall, the Hyperion strikes a great balance between being lightweight, functional, and luxurious. It’s definitely worth considering if you’re looking for a three-season bag that performs exceptionally well without weighing down your pack. -
Weight
453 g
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Fill Power
900
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Season Rating
3-Season
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Comfort Limit
0°C
"The Valley and Peak promise is built on three pillars: thoughtfully curated gear, exceptional customer service, and a genuine love for the outdoors. As an independent, family-run business, we carefully select products from a wide variety of cottage gear brands and trusted names, ensuring that each item is rigorously tested and loved by our team. Our customer service is a cornerstone of our brand, offering personalised support to help you choose and care for your gear with confidence"
Jim De'Ath, Managing Director