Sierra Designs  Mobile Mummy 800 3-Season Sleeping Bag

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The Sierra Designs Mobile Mummy 800 3-Season Sleeping Bag is designed to move with you so you can sleep in any position you like. And, you can wear it like a jacket to read, cook and walk around.

Features

  • With a European Norm (EN) lower-limit rating of 16°F, the Mobile Mummy 800 3-Season Sleeping Bag is suitable for spring, summer and fall backpacking
  • Jacket hood moves with you when your roll around and turn your head; there are no cords or toggles to bug you
  • Zipperless arm ports are ready for instant use—simply stick your arms out to grab a book or hold a mug of hot chocolate
  • 58 in. long zipper runs down the center of the top of the bag and allows easy entry and exit; 2-way zipper lets you zip open the bottom for venting
  • Unzip the bottom, stick your feet out and go for a walk while wearing the sleeping bag; tuck the footbox up with toggles to prevent bag from dragging on the ground
  • Hood, zipper and arm ports all have reinforced draft tubes to prevent cold air from sneaking in
  • When you're sitting upright in the sleeping bag, the shoulder design fits comfortably like a jacket
  • Down is considered the best insulation available, but when wet it quickly loses loft and the ability to keep you warm; 800-fill-power DriDown is treated to resist moisture
  • Proprietary process treats each individual duck down plume with a molecular-level polymer so the down stays dry longer, lofts better and dries faster than untreated down
  • DriDown insulation stays dry 10 times longer, retains 170% more loft when exposed to moisture and dries 33% faster than untreated down
  • Ripstop polyester exterior endures repeated use in the outdoors; polyester taffeta lining is soft and comfortable next to skin
  • Sierra Designs Mobile Mummy 800 3-Season Sleeping Bag comes with a stuff sack and storage sack
  • European Norm (EN) is an independent third-party temperature rating, allowing accurate comparisons across brands with other EN-rated bags

Imported.

Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Backpacking bags are typically rated for temperature according to an independent testing protocol—currently International Organization for Standardization (ISO) 23537, though some older items followed European Norm (EN) 13537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.

Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Some brands determine their own temperature rating by aligning to the Comfort rating for women’s bags, to the Lower Limit rating for men’s bags, or somewhere in the middle for nongendered bags.
View all Sierra Designs Backpacking Sleeping Bags

Technical Specs

Best Use

Backpacking

Tested Lower Limit

16 degrees (F) - EN

Tested Comfort

27 degrees (F) - EN

Temperature Rating (F)

27 degrees (F)

Temperature Rating (C)

-3 degrees (C)

Shell

Ripstop nylon

Zipper Location

Front

Insulation Type

Down

Water-Resistant Down

Yes

Fill

800-fill duck DriDown

Lining

Nylon taffeta

Sleeping Bag Shape

Mummy

Stuff Sack Size

8 x 15 inches

Stuff Sack Volume

12.4 liters

Compressed Volume

Unavailable

Gender

Unisex

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