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Sierra Designs Women's Backcountry Bed 20 Degree Sleeping Bag

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Sierra Designs Backcountry Bed 20 Degree Sleeping Bag Series

By Cheyne

Enwild Gear Specialist

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The innovative Sierra Designs Women's Backcountry Bed 20 Degree zipperless sleeping bag lets you sleep in the great outdoors with similar comfort to your bed at home whether you are a back, side or stomach sleeper. Featuring water-resistant down insulation, this unique bag is a great option for 3-season backpacking.


The innovative Sierra Designs Women's Backcountry Bed 20 Degree zipperless sleeping bag lets you sleep in the great outdoors with similar comfort to your bed at home whether you are a back, side or stomach sleeper. Featuring water-resistant down insulation, this unique bag is a great option for 3-season backpacking.

Renowned for their efficiency in retaining heat and compressible properties, the feathers and fibers of down have an incredibly soft, comfortable feel, and despite advances in synthetic materials, continue to provide the best warmth-to-weight ratio of any insulation available. The one inherent weakness of down insulation is that it loses much of its ability to maintain warmth when it gets wet, but the bag's 650-fill DriDown performs differently. Employing a unique, innovative polymer application, DriDown actually creates a hydrophobic finish on each individual plume of down. This treatment results in insulation that stays dry longer and dries faster if it should become wet than untreated down bags. Lightweight polyester ripstop shell fabric adds further protection.

By eliminating zippers, Sierra Designs has created a sleeping bag that is more similar to your down comforter at home than a traditional sleeping bag, though without your comforter's annoying ability to shift off your body in the middle of the night as you move. Slide into the Backcountry Bed through the unique catenary shaped opening and once you have settled in, the versatile integrated comforter fits naturally around you and conforms to your preferred sleeping position while also allowing you to easily adjust for varying temperatures. Insulated pockets provide a cozy place for your arms and hands to stay warm if you're not already cocooned down inside the bag and enable you to tuck the sides of the comforter around and beneath you when the temperature drops. The top of the bag also lets you to tuck your head inside for insulated warmth much like a hood. A stretch cord closure system allows you to completely seal out drafts. A unique zipperless, self-sealing foot vent allows you to extend your feet out of the bottom of the bag in balmy weather but effectively retains heat when temperatures require it. A sleeve on the bottom of the bag allows you to pair the bag directly to a sleeping pad (pad not included) to maximize thermal efficiency and even better create a bed-like sleeping experience while spending the night outside.

The Sierra Designs Women's Backcountry Bed 20 Degree sleeping bag comfortably fits up to 5' 8". A stuff sack is included.

  • Patent Pending zipperless design provides more comfort
  • Oversized Integrated comforter
  • Full-length insulated hand/arm pockets help to keep out drafts and seal in warmth
  • Patented self-sealing foot vent provides fast and easy ventilation
  • Stretch cord closure system helps to keep out drafts
  • Integrated sleeping pad sleeve keeps pad under you for comfort/warmth and replaces unnecessary bottom insulation (sleeping pad NOT included)
California residents: view proposition 65  Warning

Technical Specs

Best Use
Backpacking, Camping
En Comfort Rating
24 Degrees F
En Lower Limit Rating
12 Degrees F
Fill Material
650-Fill DriDown
Fits To Length
5' 8"
Temperature Rating
20 Degrees F
Insulation Type
Item Weight
2 lb 13 oz
Stuff Sack Inclued
Limited Lifetime
Packed Size
16" x 8.5"
Shell Material
20D Polyester Ripstop
Liner Material
20D Polyester Taffeta

1 Reviews

5 / 5


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A hybrid between sleeping bag and a quilt


Wow, this is comfortable. I mean, really comfortable. First, I am a guy reviewing a women's bag because I have found women's bags in general a little warmer and roomier, which is good for me as an older, smaller guy, side sleeper, and a cold sleeper. This item is very unique and appears to me as both a sleeping bag and a quilt with the advantages of each, and few or none of the disadvantages. The bottom half from the thighs down is like an overstuffed sleeping bag, the top half is like a loaded top quilt. No down underneath from your rear to head so your pad fits in a sleeve and keeps you warm, just like using a quilt, plus it has a hood - big enough to hold a pillow. You climb in from the top without a zipper and pull the top quilt over your shoulder, and the sides are sealed when you move around. Nothing to not like here. That said, I will need to give it a genuine warmth test when the weather cooperates this spring - but it sure feels warm. The "Comfort" ISO rating on the tag is 24F, and that's not too shabby. Lastly, there are vents in the top and bottom if it gets too warm: flip the quilt top down part way for the top, and there are hidden escape pockets for your feet to poke out at the bottom. They thought of everything.


Only two. The listed tag weight is getting heavier at 2lbs 10 oz., possibly owing to the 650 fill down instead of the previous model's 700 fill down, and this is the warmer-rated women's version (the men's version is rated ISO 28F). So while not "heavy" for an ISO 24F comfort-rated bag, it isn't UL either. A goodnight's sleep in exchange for an extra 1.5 lb of weight is worth it for average folks not doing an expedition. The other very minor complaint is that the color choice is limited to one: plum. The plum is a fine color and not hot pink or anything - but not particularly woodsy or natural.