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Sierra Designs Women's Mobile Mummy 800F 3 Season Sleeping Bag


Sale Price $314.95


You Save $85.00 21%

End of Season Clearance!

Sale Price $314.95


You Save $85.00 21%

Availability: In Stock!

Ships tomorrow.

Availability: In Stock!

Ships tomorrow.
Item # SDE94210
With “garment-style” construction, the innovative Sierra Designs
Women’s Mobile Mummy 800F 3-Season sleeping bag includes armholes, a
jacket-style hood and a stowable footbox so you can literally wear it around
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With "garment-style" construction, the innovative Sierra Designs Women’s Mobile Mummy 800F 3-Season sleeping bag includes armholes, a jacket-style hood and a stowable footbox so you can literally wear it around camp. Featuring 800 fill duck DriDown water-resistant down and strong nylon ripstop shell fabric for waterproof protection, the Women’s Mobile Mummy 800F 3-Season is a high-quality, extremely durable and comfortable bag with female-specific construction details for 3-season camping.

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 DriDown featured in the Women’s Mobile Mummy 800F 3-Season bag 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 up to 10 times longer and dries 33% faster, should it become wet, than untreated down bags.

In addition, gender-specific construction on the Women’s Mobile Mummy 800F 3-Season bag offers a fit that is more proportional between the shoulder and hip girth for better thermal efficiency and includes a higher level of insulation to help offset a woman's natural tendency to sleep colder than a man.

Unlike traditional mummy-style sleeping bags, which can be restrictive for campers who tend to change position frequently throughout the night or who don’t sleep stick-straight on their backs, the Mobile Mummy bag is designed to move with you whether you’re fast asleep or up and about making breakfast in camp. The garment-style design through the shoulders allows the bag to rest there instead of your head, so if you sit up with the hood on, the Mobile Mummy sits up too without applying uncomfortable pressure to your head and neck. And that hood has no cords or toggles, but just fits snug around your face like the hood on your favorite insulated jacket. The armports are zipperless and also free of any other uncomfortable hardware like toggles or hook and loop closures. They, like the hood, central zipper, draft collar, draft tube and draft curtains are all reinforced with additional interior down baffling to prevent cold air drafts. The centrally placed 58" zipper is dual sliding, which allows you to vent the bag or put your feet out to stand up and move about – the footbox can be tucked up with toggles to stay off the ground when you’re walking!

The Sierra Designs Women’s Mobile Mummy 800F 3-Season sleeping bag fits individuals up to 5' 8" tall. A stuff sack and storage sack are included.

  • Women’s specific
  • 800 Fill Duck DriDown
  • Ultralight jacket hood with no cords or toggles
  • Zipperless armports
  • Garment-style shoulder design
  • 58" center-placed zipper
  • Stowable footbox can be toggled to prevent drag



Best Use Backpacking, Camping, Mountaineering
Insulation Type Down
Warranty Lifetime
Type DriDown
Temperature Rating 15 Degrees F
Shell Material 20D Nylon Ripstop
Packed Size 8" x 15"
Other Storage Sack Included
Liner Material 20D Nylon Taffeta
Item Weight 2 lbs 7 oz
Fits to Length 5' 8"
Fits to Girth 60"
Fill Material 800 Fill Duck DriDown
EN Lower Limit Rating 7
EN Comfort Rating 20


Real Customer Reviews

Average Rating:
(based on 1 real customer review)

1 Item

Good bag for squirmy sleepers
Reviewed by Amy G. - April 22, 2017

Likes: Particularly when camping, you find you must change sleep positions regularly. This bag moves with you better than any we've used, and allows back, side, or stomach sleeping.

Dislikes: Although comparable in price for others of same quality, its still a hefty investment.

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