Name: Nemo Sonic -20° Down Mummy Sleeping Bag
Brand: Nemo
SKU: 811666034557
Price: 614.96 USD
Availability: InStock

$749.95 $614.96 Save $134.99

Shipping calculated at checkout.

Color

Goodnight Gray/Torch

Size

Long

Regular

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In stock
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Sonic -20° Down Mummy Sleeping Bag

Extreme Cold Weather Performance

DescriptionFeaturesSpecs

Sonic is built to be the only bag you need from -20°F to 40°F. The Backpacker Editors' Choice award-winning big-mountain bag offers exceptional warmth and versatility for any cold-weather adventure.

With premium 800 fill power down and a thermally efficient mummy shape, Sonic delivers outstanding warmth-to-weight ratio. The bag features NEMO's innovative Thermo Gill™ vents for temperature regulation.

Key Features

800 fill power down provides exceptional warmth-to-weight ratio.

Thermo Gill™ vents allow fine-tuned temperature regulation.

Thermally efficient mummy shape maximizes warmth.

Water-resistant down maintains loft in damp conditions.

Draft collar and draft tube prevent heat loss.

Protected by the NEMO Adventure Forever Guarantee™.

Product Specifications

Minimum Weight

3 lb 12 oz / 1.70 kg

Packed Weight

3 lb 14 oz / 1.76 kg

Packed Size

14.0 x 9.5 in dia / 36 x 24 cm dia

ISO Comfort

-6F / -21C

ISO Limit

-20F / -29C

Fill Type

800 FP Down

Fits Up To

6' / 183 cm

Color

Goodnight Gray / Goldfinch

Zipper Location

Left

Shipping Policy

Components:

All component items (wheels, drivetrains, suspension, brakes, etc.) ship within 1–4 business days of purchase.

Bicycles:

Complete bikes typically ship within 2–3 weeks due to build, tuning, and inspection times. You will receive tracking information as soon as your order is ready to ship.

Riding Gear & Apparel:

Riding gear and apparel orders (helmets, jerseys, gloves, etc.) ship within 1–3 business days.

Returns & Exchanges:

If you received the wrong size or wish to exchange an item, it must be returned in original condition—unused, uninstalled, and with all packaging intact.

For full details, please see our Refund Policy before initiating a return.

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Prepared with intention.

Every product is carefully inspected and handled by our team before it ships. From fit and function to final details, we make sure each piece is ready for the outdoors ahead—so you can focus on the experience, not the gear.

Passion drives us

At SpokeX Bike Co., bikes aren't just our business — they’re our way of life. As a rider-owned and operated shop, every decision we make comes from firsthand experience on the trail, at the race, and on the open road. We know what it’s like to chase a new line, push through the pain cave, and celebrate the ride — because we live it every day.

SpokeX & SX Collective — Mountain Bike Wheelsets, E-MTB Components, Snowboarding, Skiing, Hiking, Running & Camping Gear

Nemo Sonic -20° Down Mummy Sleeping Bag

Shipping Policy

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