Sleeping Bags, Tents, Pads & Outdoor Gear

Sidewinder 20°

Sidewinder 20° - Main image
$211.17 $349.95 In stock

Category: Ultralight Sleeping Bags

Specifically designed for the over 60% of people who sleep on their sides, the second generation of our patented Sidewinder side sleeper technology ensures warmth, comfort, and ease of use in any position you settle into. Constructed for comfort, with additional body mapped insulation to optimize warmth where you need it and provide cushioning and support at the hips and shoulders, easing pressure points and other ‘side effects’. The Sidewinder is a side sleeper’s dream bag with technical features that roll seamlessly from one adventure to the next, and from one side to the other at night. U.S. Patent 11957260 B2

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.6 / 5 · 5 reviews)

Matthew Q. ★★★★★

Tossed and turned my way through countless bags before this one, but the side-sleeping cut actually lets me bend my knees without the whole thing twisting into a pretzel. The zipper doesn’t snag when I roll over mid-sleep, which is a small miracle. Warm enough for a chilly 45° night in the Sierra, a

Violet ★★★★★

I’ve never had a sleeping bag that actually stays put when I roll over, but the patented side sleeper design here means I wake up still covered instead of fighting the draft. The 20° rating gave me a warm, cocooned night even with the vents open. Genuinely impressed this exists.

Emma ★★★★★

I’m a stomach-sleeper usually, but this bag’s side-sleeper cut actually let me curl up without the hood twisting or cold drafts sneaking in at my shoulders. The zipper glides smoothly even when I’m half-asleep, and the footbox gives my toes room to move without losing heat. Honestly, first night out