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Therm-a-Rest

Therm-a-Rest Hyperion 32F/0C Ultralight Down Mummy Sleeping Bag

  • Based on 24 reviews
Condition: New
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Availability: Only 3 left in stock, order soon!
Fulfilled by Amazon
Arrives Wednesday, Aug 20
Order within 5 hours and 36 minutes
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Style: Regular


Features

  • Ultralight, packable 32-degree mummy sleeping bag for three-season camping and backpacking provides peak performance for uncompromising adventurers
  • This feather-light sleeping bag weighs a mere 16 ounces; lightweight materials and precise design allow for an extremely small packed size
  • 900-fill Nikwax Hydrophobic Down stays drier and maintains loft 60 x longer than untreated down; box baffle maximizes loft and minimizes cold spots
  • Ergonomic shape and longer zipper provide a comfortable fit; SynergyLink Connectors integrate the bag with a mattress for efficiency and comfort
  • Regular size fits heights up to six feet, weighs 16 ounces and packs down to 5.5 x 6 inches; storage sack and compression stuff sack included

Description

For a light pack and a good night’s sleep, the Therm-a-Rest Hyperion 32-Degree Ultralight Down Mummy Sleeping Bag provides peak performance for backcountry pursuits. The bag uses thermally-efficient box baffled construction in key areas to ensure warmth and comfort. Designed with high-quality materials and Therm-a-Rest performance features like SynergyLink Connectors, the Hyperion keeps your pack featherweight without sacrificing performance. ThermaCapture Lining traps radiant body heat and retains warmth without adding bulk or weight while zoned insulation maximizes warmth and saves weight by intentionally placing fill where it’s needed most, 70-percent on the top and sides with 30-percent on the back. The Hyperion Mummy Sleeping Bag is also Responsible Down Standard Certified ensuring that the waterfowl in the down supply chain are treated humanely. The Therm-a-Rest Hyperion 32-Degree Ultralight Down Mummy Sleeping Bag is available in 3 sizes, all of which pack down to 5.5x6 inches: Small sleeping bag fits heights up to 5 feet 6 inches and weighs 15 ounces; Regular sleeping bag fits heights up to six feet and weighs 16 ounces; Long sleeping bag fits heights up to 6 feet 6 inches and weighs 18 ounces. Storage sack and compression stuff sack included. Limited lifetime warranty.


Brand: ‎Therm-a-Rest


Color: ‎Black Forest


Occupancy: ‎1 Person


Shape: ‎Mummy


Temperature Rating: ‎To 40 degrees


Material: ‎nylon


Fill Material: ‎Down


Product Dimensions: ‎80"L x 28.5"W


Closure Type: ‎Zipper


Item Weight: ‎1 Pounds


Outer Material: ‎Nylon


Size: ‎Regular


Item Package Dimensions L x W x H: ‎20.5 x 13.5 x 13.5 inches


Package Weight: ‎0.61 Kilograms


Item Dimensions LxWxH: ‎80 x 28.5 x 3 inches


Brand Name: ‎Therm-a-Rest


Warranty Description: ‎Limited Lifetime


Model Name: ‎Hyperion 32F/0C


Suggested Users: ‎unisex-adult


Number of Items: ‎1


Manufacturer: ‎Cascade Designs Inc.


Part Number: ‎


Model Year: ‎2021


Style: ‎Regular


Included Components: ‎sleeping bag, storage sack and compression stuff sack


Fill Material Type: ‎Down


Date First Available: January 23, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Aug 20

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Warm and light - but quite slippery
Style: Long
The biggest drawback for me is how slippery the material is. There's a lot of sliding around even despite the two attachment loops. I often have to make adjustments through the night, esp. when sleeping on a small incline (and most of the nights there's one, since out in the wild it's hard to find an absolutely flat spot for a tent). ... show more
Reviewed in the United States on September 26, 2019 by DC
    • Not a product review! Wish I could give zero stars to Amazon Customer Service
Style: Regular
Bought this product and like all Thermarest products it was top notch. Just doesn’t fit my shoulders and I knew that was a risk. Returned it to Amazon, two weeks go by and no refund. Contact Amazon today on chat and they say I need to wait two more days even though they received it 12 days ago. I checked again today to see if it was a mistake and now it shows it has been delivered and no return has started!!! I don’t have the bag anymore, they do! Also, there is no way to get a representative on the chat without a return started. Swing and a miss Amazon! ... show more
Reviewed in the United States on October 11, 2022 by Amazon Customer
    • Not a 42° Comfort Rated Bag
Style: Long
I purchased this elsewhere but the review applies to wherever thermarest sells. The Hyperion 32 is an excellent bag. It’s weight can’t be beat. The construction is superior but there is a design flaw. I gave the bag three stars because of the zipper and draft tube placement. It is clear that the bag is made for those who sleep on their backs. As for reality that doesn’t happen. I tend to move and the only way I could be fully comfortable, and not get a cold spot along the zipper, was to stuff my down jacket along the zipper. I didn’t have any issues with the right side of the bag so it wasn’t the strategically placed down. The draft tube is on the top. Cold goes down. So it’s placement, on the top of the zipper, I feel, is a design flaw. But I’m still thinking that wouldn’t make a difference and a different zipper would. I know for sure it was the zipper because it felt cold and the bag did not. The coldest it got was 35° and that was only one night as the other nights, 5, were 40-45° I do not consider this a 32° bag when I get a draft at 42° and I run hot so I love cold weather. I shouldn’t have to wear fleece, or stuff a down coat, to be comfortable in a bag that’s rated 42° for comfort. I would rather use my Cat’s Meow from 1996. That is a 30° bag with primaloft and is good at 30°. It’s the only bag I’ve had that’s rated for 30° that isn’t freezing at it’s temp rating. Yes, I know bags are rated differently now. The only reason I wanted this bag is because I can drop a pound. ... show more
Reviewed in the United States on November 28, 2020 by wound_healer

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