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  • Therm-a-Rest - Oberon Sleeing Bag: 0-Degree Down - Element
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  • Therm-a-Rest - Oberon Sleeing Bag: 0-Degree Down - Element

Therm-a-Rest Oberon Sleeing Bag: 0-Degree Down

$479.95 - $519.95

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    • Element

    6 Reviews


    Packing more for colder trips.

    It's a shame you have to trek with a heavier backpack when you're trekking in freezing temperatures—winter attire is much heavier than summer—but at least the Therm-a-rest Oberon Sleeping Bag packs down to the size of larger water bottles. Its 800-fill down insulation is ridiculously lofty, compressible, and surprisingly light for how warm the bag feels. The down is treated with Nikwax for hydrophobic properties that keep the down lofty and warm in moisture-riddled environments. Therm-a-rest lined the bag in ThermaCapture to reflect your body heat back to you for a boost of warmth. You'd think this lightweight bag wouldn't come with any additional features, but the Oberon has sleeping pad connectors and blanket loops for fully-featured convenience.
    • Lightweight, compressible sleeping bag for backpacking
    • 14F comfort range keeps you warm in freezing temperatures
    • 800-fill Nikwax Hydrophobic Down maintains warmth in humid climates
    • Zoned insulation places more down at the top than down low
    • SynergyLink connectors attach bag to sleeping pad
    • ThermaCapture lining reflects body warmth back to you
    • Internal pocket and loops designed for quilts or blankets
    • Toe-asis footwarmer box ergonomically wraps around your feet
    • Item #CAS00DN

    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.
    [shell] 20D polyester ripstop [liner] 20D polyester taffeta
    800-fill down, Nikwax hydrophobic treatment, ThermaCapture lining
    Max User Height
    [small] 66in [regular] 72in [large] 78in
    Shoulder Circumference
    [small] 57in [regular] 62in [large] 65in
    Hip Circumference
    [small] 56in [regular] 57in [large] 58in
    Foot Circumference
    [small] 44in [regular] 46in [large] 51in
    Draft Tube
    collar, tube
    1 zippered
    Pad Retainer
    SynergyLink Connectors (removable)
    Fill Weight
    [small] 1lb 9oz [regular] 1lb 11oz [large] 1lb 14oz
    European Norm Comfort Rating
    European Norm Lower Limit Rating
    Storage Sack
    Stuff Sack
    Stuff Size
    10 x 17in
    Claimed Weight
    [small] 2lb 4oz [regular] 2lb 7oz [large] 2lb 10oz
    Recommended Use
    Manufacturer Warranty

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Best 0F I've ever used

    • Familiarity: I've put it through the wringer

    All in all, the Oberon is my new go-to sleeping bag for winter excursions. This sleeping bag does it all. It compresses well and is extremely lightweight, while still being incredibly warm. The SynergyLink Connectors ensure that you won’t slide off your sleeping pad in the middle of the night, and the Toe-asis Foot Warmer Pocket keeps your toes warm all night long. The only area for improvement with the Oberon, isn’t actually about the Oberon itself. The compression sack could be made smaller so that it will compress the sleeping bag further. Overall, the Oberon scores 5/5 in my book. It’s an excellent sleeping bag, nice work Therm-a-Rest!


    • Familiarity: I've used it several times

    I am a very cold sleeper and needed something warmer than my 20 degree bag I currently have. I used it on our most recent trip down to Moab where it got down to 23 degrees one night. I was TOASTY warm which is huge. We woke up to frost on our tent and frozen waterbottles. This sleeping bag also has enough room so that I didn't feel constricted and could sleep with my leg up in the flamingo pose as I like to call it. I'm obsessed and swear by this bag now.

    Amazing game Amazing

    • Familiarity: I've put it through the wringer

    I took this sleeping bag on a trip to Nepal. It was amazing! I found it to be very comfortable, warm, and very well built. Carrying it wasn't inconvenient due to its packability and lightness.


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

    I used this sleeping bag in the desert last weekend -- it was around 20 degrees out so the 0 degree might have been overkill, but whatever -- and loved it. It's big and fluffy and retains heat well, but still packs down ridiculously small compared to some other 0 degree bags that I've used in the past. This was my first time using a Therm-a-Rest sleeping bag, and I wasn't disappointed.

    New favorite bag

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

    I got to take the Oberon for a "test sleep" with Thermarest in January, and I was thoroughly impressed. The weather was... damp. It snowed about a foot of Cascade Concrete overnight, and the inside of our tent felt like a rainforest. But golly, I was as warm and dry inside the Oberon as I've ever been on a backcountry adventure. In my other bag I would've been a shivery mess. I've been converted to a believer in hydrophobic down. I usually sleep cold and was a little worried about the 14deg comfort rating, but it turned out to be plenty warm enough (even with my soggy gloves and boot liners in the bag with me). I immediately said buh-bye to my old bag and upgrade to this one.

    Therm-a-Rest Oberon 0F/-18C Sleeping Bag

    For those that take their adventures into the heart of winter or into colder climates, the Oberon provides the crucial protection you need. We engineered the Oberon to protect athletes from extreme conditions during extreme pursuits, meticulously designing every gram to add warmth and security for the user. Certified by the Responsible Down Standard, the bag's 800-fill Nikwax Hydrophobic Down™ repels moisture and stays warm in damp conditions. Get better rest while keeping the cold at bay with the Oberon. Storage sack and compression stuff sack included.

    Unanswered Question

    Is the stuff sack size listed with the bag in the compression sack or just a stuff sack?