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Big Agnes Women's Sidewinder SL 35 Down Sleeping Bag

MSRP: $269.95
Was: $269.95
Now: $158.88
(You save $111.07 )
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Catch Some Z's

You never sleep on your back at home, so why would you do it while camping? Introducing the Big Agnes Women's Sidewinder SL 35 Sleeping Bag, the first sleeping system made to let you sleep on your side. The technical fit ensures that the bag stays with you all night long, even if you move from side to side while the body-mapped synthetic insulation stops you from feeling the pressure in your hips. 650-fill down insulation throughout offers an ideal warmth-to-weight ratio, and a women's specific fill-weight adds a little bit of extra heat on chilly nights out. Big Agnes even threw in a pillow barn, meaning that instead of waking up with a stiff neck, you'll wake up feeling refreshed and ready to go.

Features

  • Down sleeping bag for campers who sleep on their sides
  • Designed with extra insulation and a women's specific contour
  • 650-fill Downtek™ insulation provides a high warmth-to-weight ratio
  • Body-mapped synthetic insulation provides extra cushion in the hips and feet
  • Integrated Pillow Barn with stretch mesh keeps your pillow in place
  • Jacket-style hood hugs your face without causing unwanted pressure
  • Water-repellent finish on the shell and liner stop moisture from soaking your insulation
  • Storage bag and stuff sack - Included

Construction + Materials

  • Shell: Nylon rip-stop
  • Lining: Polyester taffeta
  • Insulation: Primary: 650-fill water-resistant DownTek™; Body Mapped: Fireline™ Eco Synthetic Insulation

Specs

  • Temp Rating: 35° F
  • Shape: Mummy
  • Best Use: Backpacking, Camping
  • Gender: Women's
  • Zipper Side: Center
  • Fits Up To: [Petite] - 5' 5"; [Regular] - 5' 10"
  • Bag Weight: [Petite] - 2 lbs 1 oz; [Regular] - 2 lbs 3 oz
  • Fill weight: [Petite] - 16.5 oz; [Regular] - 19 oz
  • Compressed Size: [Petite] - 5.5" x 6.5"; [Regular] - 6" x 7.5" 
  • Stuff Sack Size: 8" x 17.5"

Reviews

We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
4.8
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95%
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Verified Buyer
October 3, 2025 by Byron H. (United States)
“smooth checkout”
Verified Buyer
October 2, 2025 by Rolla S. (CO, United States)
“Good”
Verified Buyer
October 1, 2025 by ASL (Utah, United States)
“I was blown away by how fast the helmet arrived at my house. I ordered it on a Sunday afternoon and it arrived Wednesday morning. I was not expecting that.

I found the Campman site when my usual go-to sites were sold out of the helmet I wanted - but Campan had it in stock and at a very fair price. Based on my first experience with Campman, they will now be part of my "go-to" site list when looking for outdoor gear.”

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