Free 2-Day Shipping on Orders Over $50

Detail Images

  • Therm-a-Rest - Detail
  • Therm-a-Rest - Front
  • Therm-a-Rest - Detail
  • Therm-a-Rest - Hyperion Sleeping Bag: 20 Degree Down - Deep Pacific
  • Therm-a-Rest - Detail -
  • Therm-a-Rest - Front -
  • Therm-a-Rest - Detail -

Current Color

  • Therm-a-Rest - Hyperion Sleeping Bag: 20 Degree Down - Deep Pacific

Therm-a-Rest Hyperion Sleeping Bag: 20 Degree Down

$399.95

Free 2-Day shipping on orders over $50. Learn More

Need advice picking the right gear for your next adventure?Talk to a Gearhead

Select a Size:

Select options
  • Select options
    • Small

    Select a Color:

    Select options
  • Select options
    • Deep Pacific
    4.553

    3 Reviews

    Details

    Hyperion Sleeping Bag: 20 Degree Down

    Slide the featherlight Therm-a-Rest Hyperion Sleeping Bag: 20 Degree Down into your trusty backpacking pack before a long through hike. The lightweight and packable construction of this sleeping bag will ensure there is plenty of room in your pack for other necessities. The 900-fill Nikwax Hydrophobic Down makes this warmth and packability possible by trapping your body heat in strategic areas and compressing to an impressively small size. As an added bonus the Nikwax treatment means the down can handle moisture without losing its loft so that a surprise rainstorm wont ruin your trip. This bag also features an ergonomic shape and longer zipper that makes it far more comfortable than some competitors bag in the ultralight category.

    • Lightweight and packable bag built to keep you on the move
    • 900-fill Nikwax Hydrophobic Down maintains loft when moist
    • 20° rating keeps you comfortable even when the temperature drops
    • Zoned insulation organizes down to minimize weight, maximize warmth
    • SynergyLink connectors hold your pad in place while you roll over
    • Precise design increases packability to keep your load organized
    • Ergonomic shape and longer zipper boost the comfort of this bag
    • Item #CAS00EO

    Tech Specs

    ⚠️ WARNING
    This product can expose you to chemicals including toluene, which are known to the State of California to cause birth defects or other reproductive harm. P65Warnings.ca.gov
    Insulation
    900 fill Nikwax Hydrophobic Down
    Shape
    mummy
    Draft Tube
    yes
    Pad Retainer
    SynergyLink Connectors (removable)
    Degree
    20
    European Norm Comfort Rating
    30°F
    European Norm Lower Limit Rating
    20°F
    Storage Sack
    yes
    Stuff Sack
    yes
    Claimed Weight
    [small] 1lb 3oz [regular] 1lb 4oz [long] 1lb 6oz
    Recommended Use
    backpacking, mountaineering, weekend camping
    Manufacturer Warranty
    lifetime

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Solid Spring/Summer Bag

    • Familiarity: I've used it once or twice and have initial impressions

    Great for those summer nights when you sleep outside but a blanket just won't do to keep you warm. I was seriously blown away at how toasty this tiny thing got! Didn't need to wear any extra layers to bed when I hit the sack at night. Packs down very small if you are limited on space which is always a plus!

    Cozy

    • Familiarity: I've used it once or twice and have initial impressions

    Took this bag spring time camping down in the desert. It kept me comfortably warm but not too hot. The temps dipped into the mid 30's overnight but I slept like a baby. It's a relatively narrow bag and the mummy design makes you feel like you're wrapped in a cocoon, which I like. If you like a little more space in your bag this might not be a good one for you. There are some leashes on the underside of the bag to wrap around your sleeping pad and prevent you from falling off. They will work best with a thermarest pad but can be used on most pads. The bag is super lightweight and comes with a compression sack that makes the bag pack down super small. My one complaint is that the zipper does not zip the whole length of the bag, it only zips about halfway. Sometimes if I'm too hot I like to air my feet out to help cool off. But otherwise seems like a solid bag.