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Backcountry Bed Duo 600 / 30 Degree

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You asked for it - and we built it. Now you can "sleep" in the wild like you do at home, with a comforter…and a special someone. With an oversized, integrated comforter sealing the opening, you can "sleep" comfortably and naturally on your back, side, or stomach. Plus, it's lighter than carrying two separate bags.


Shell Material:
30D Polyester Ripstop
Liner Material:
30D Polyester Ripstop
600 Fill Duck DriDown

Tech Specs

Temperature Rating:
27oF / -3oC
EN Comfort Limit:
Test Not Available (Same proportional fill to BCB 600 2S: 37° F / 3° C)
EN Lower Limit:
Test Not Available (Same proportional fill to BCB 600 2S: 27°F / -3° C)
Fits To:
6 ft 4 in / 193 cm
Fill Weight:
26.6 oz. / 0.75 kg
Trail Weight:
4 lbs 8 oz. / 2.05 kg
Sleeping Pad Sleeve Width:
Adjustable: 2x 20 in. / 51 cm or 2x 25 in. / 63.5 cm
Zipper Side:
Stuffed Size:
9 x 16 in / 22.9 x 40.6 cm
Pad Thickness:
20 in. x 2-2.5 in.
This item may be patented
Gender: Unisex
Season: 2 Season
Insulation: DriDown
Backcountry Edge:
Temperature Rating: 30 Degree
    • Sierra Designs - Backcountry Bed Duo

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    Product Reviews


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    1. newlywed camping life just got better

      We loved the first backpacking weekend with the bag (bought for us as a wedding gift this summer)! We were up in the Sierras in California, so nighttime temps got down to high 30s low 40s. We were warm but not too warm! We liked all the features. We have different styles of camping pads (you slip them into the sleeping bag & there are buttons to securely hold them in), so sometimes we had a "gap" in between them of about an inch or more - and we tried to slide them back together. Overall it's a great bag - very well designed - and something that's a lot more fun than two separate bags! on Aug 2nd 2016

    2. fantastic sleeping bag

      I purchased the older version of this Sierra Designs bag. My wife and I regularly take an extensive motorcycle camping trip for our vacation. It’s as though Sierra Designs had moto-campers in mind when they designed this bag. It is light weight, compact and warm, three very important features for our moto-camping trips to cold climates. Plus it’s incredibly comfortable for a couple and with no zippers to fight with it’s an amazing bag. We recently returned from a 5400 mile, three-week trip. This bag was an exceptional addition to our gear, keeping our weight low on the bike and keeping us warm even when the temperatures plummeted to the 20s. Thank you for designing an extraordinary product. on Jul 10th 2016

    3. Only used once so far

      This bag is lighter than both my (zero-degree) and my husband's (15-year old, heavy, zero-degree) sleeping bags put together and packs smaller too. We have only tried it out once in very warm Colorado weather but so far it is great. I am not sure if it will hold up to colder weather camping situations but having two bodies will definitely help in colder weather. My guess is we will primarily use this for front country car camping and warm weather backpacking. on Jul 8th 2016

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