Big Agnes Sidewinder
Best specialized sleeping bag for dedicated side sleepers seeking nighttime mobility.
Designed specifically for those who prefer sleeping on their sides, this bag features a unique, body-mapped insulation layout that provides pressure relief at the knees, hips, and shoulders. It balances the loft of down with the durability of synthetic fill, ensuring warmth and comfort while maintaining a compact, packable profile.
$349.95
In stock
at
REI Co-op
Who it's for
- Side sleepers seeking a bag tailored to their natural posture
- Restless sleepers who struggle with shifting pillows during the night
- Eco-conscious backpackers prioritizing sustainable outdoor gear
Who should skip it
- Active sleepers who require significant leg room and mobility
- Ounce-counting thru-hikers focused on minimizing their total pack weight
- Winter campers facing temperatures consistently below freezing
Key Specs
Temperature Rating
20 degrees Fahrenheit
Insulation Type
Down and Synthetic Blend
Fill Power
650
Weight
2.44 lbs
Shell Material
Recycled ripstop polyester
Lining Material
Recycled polyester taffeta
Zipper Location
Front
Water Resistant
Yes
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Ask Metto anything about the Big Agnes Sidewinder before you decide.
