Big Agnes

Sidewinder SL 35 | Women's

Colour: Blue

Sleeping bag custom-made for side sleepers

People who sleep on their sides tend to have a rough time of it when they go camping. Unlike back or front-sleepers (yeah, apparently the latter do exist), the shape of the slumbering human body doesn’t conform easily to the hard, flat ground. Aching shoulders and hips are a common result. And that’s before we get on to the problem with standard sleeping bags, which tend to end up twisted around you like a boa constrictor, with the zip digging in uncomfortably somewhere underneath you. If that sounds familiar, the patent pending Sidewinder is going to be a genuine game-changer. Constructed with all the technical features you expect from a high-performance mummy bag, it also employs additional body mapped insulation to optimise warmth where you need it and minimise pressure points. It’s also ergonomically contoured for side sleepers, even if you tend to roll over in the night, thanks to a specially designed hood and footbox

    • Specifically designed for people who sleep on their sides with a technical fit, patterned to move with you as you roll from one side to the other
    • Close fitting, jacket-style hood keeps insulation close to the body without sacrificing mobility
    • Keep pillow in place with unique Pillow Barn made of stretch mesh material with interior access from either side for easy adjustment
    • Optimised warmth and minimized pressure points with body mapped insulation
    • Improved shell fabric and lining with PFC-free water repellent finish
    • Down fill with a PFC-free water repellent finish throughout the bag provides lofty warmth while synthetic insulation helps alleviate common pressure points in the hips and feet
    • Optimised fit and thermally efficient footbox is patterned to mimic the shape of your foot position while lying on your side
    • Smooth, quick zip with anti-snag locking zipper with zipper garage and long, ambidextrous zipper
    • Easily adjust hood without unzipping using low-profile internal cordlock access
    • Seal out draughts by cinching insulated tube along upper hood opening
    • Hang dry or store bags with exterior loops
    • Storage sack & stuff sack included
    • Works with any pad size or style
  • Big Agnes Sidewinder SL Sleeping Bag Features

  • Size Petite Regular
    Temperature Rating 35˚F/ 2˚C 35˚F/ 2˚C
    Fits up to 5'5 / 165 cm 5'10" / 178 cm
    Bag Weight 936 g 992 g
    Fill Weight 466 g 533 g
    Compressed Size 14 x 16 cm 15 x 19 cm
    Stuff Sack Size 20 x 45 cm 20 x 45 cm

    Big Agnes Sidewinder Womens SL Girth Features

    • Shell: Nylon ripstop featuring a PFC-free water repellent finish
    • Lining: Polyester taffeta featuring a PFC-free water repellent finish
    • Primary Fill: 650 fill DownTek™
    • Body Mapped Fill: FireLine™ ECO Synthetic Insulation
    • BLUESIGN Certified Partner - BLUESIGN gives you the assurance that only companies that act responsibly were involved in the manufacture of a product that is designated with the BLUESIGN® product label.
    • Recycled Materials - The fill is GRS certified and is made from 100% post-consumer recycled polyester taffeta
  • Big Agnes is a small, independent US outdoor brand out of Steamboat Springs, Colorado – a small ski-town that we’ve never visited but which we like to imagine is full of mountain-loving, trail-hiking outdoorsy types. That would make sense, since the company makes some of the best ultralight backpacking gear around, including the award-winning Copper Spur, Tiger Wall and Fly Creek tents. It is kit that has clearly been designed by a gang of folks who love sleeping in the dirt just as much as we do here at WildBounds.

    Oh, and if you’re still wondering where the heck that name Big Agnes comes from, we did try to find out. Depending on who you talk to, it’s either an affectionate tribute to a legendary truck drivin’ mountain mama, or a 12,000 foot peak in the Mount Zirkel Wilderness. We kinda like the first one better.

The best sleeping bag I've ever used! It kept me warm in Denali..

-Angela, Verified Buyer


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