SKU: 598678379

Nemo Sonic -20F/-29C Sleeping Bag

Sale price$396.00 Regular price$440.00
Save 10%

Pay in installments of $110.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 15 - Aug 20

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Nemo Sonic -20F/-29C Sleeping BagThe ultimate mountain sleeping bag Built to be the only bag you need from 20F to 40F, Nemo has updated their Backpacker Editors Choice award winning big mountain bag, Sonic, for even greater warmth, tuneability, and reduced environmental impact. With this bag, we are launching our next generation Thermo Gills with a new multistage zipper system that dramatically increases the usable temperature range of the bag and allows fine tuning of comfort from

The ultimate mountain sleeping bag

Built to be the only bag you need from -20°F to 40°F, Nemo has updated their Backpacker Editors’ Choice award-winning big-mountain bag, Sonic, for even greater warmth, tuneability, and reduced environmental impact.

With this bag, we are launching our next-generation Thermo Gills™ with a new multistage zipper system that dramatically increases the usable temperature range of the bag and allows fine-tuning of comfort from within the bag. Sonic’s new chevron baffle construction better compartmentalizes down, eliminating migration and keeping the down evenly lofted. Not to mention, it looks awesome. In updating the bag's design, we put a high priority on taking a leap forward in sustainability.

The shell and liner fabrics are 100% recycled and bluesign® approved. The premium 800 FP hydrophobic down is 100% Responsible Down Standard (RDS) certified. We also took years of history in the field to make detailed upgrades, including massaging the profile of the bag, redesigning the draft collar, and bolstering the draft tubes. Our proven Toester™ footbox keeps feet warmer, provides a waterproof barrier against tent wall condensation, and protects down from moisture while drying damp clothes inside the footbox. Adaptable to whatever the mountain throws at it, Sonic continues to reverberate as the ultimate extreme weather companion.

Details

  • Award-winning design is updated for even greater warmth retention and adjustability across temperatures.
  • Updated design incorporates 100% recycled, bluesign® approved shell and liner fabrics.
  • Updated Thermo Gills™ extend the comfort range with a new multistage zipper system.
  • Overstuffed with premium 800 FP hydrophobic down that is PFC-Free and 100% Responsible Down Standard (RDS) certified, ensuring humane treatment and traceability throughout the supply chain.
  • New chevron baffle construction better compartmentalizes down for more uniform loft and down migration prevention.
  • Stretch construction at the knees for comfortable side sleeping.
  • Redesigned draft collar and draft tubes keep cold air out.
  •  Redesigned Toester™ waterproof/breathable footbox utilizes a layer of synthetic insulation to protect the down and deliver maximum toastiness for toes.
  • Offset zipper creates a thermally efficient seal while an updated profile secures warmth closer to the body.
  • Protected by the NEMO Lifetime Warranty.

 

    What's Included

    • Compression stuff sack   

      Best Use

      • Winter Camping
      • Mountaineering

      Construction & Materials

      Shell Fabric 20D 100% Recycled Nylon, Bluesign Certified Ripstop w/ DWR
      Footbox Fabric 40D 100% Recycled Nylon, Bluesign Certified Ripstop W/B w/ DWR
      Lining Fabric 20D 100% Recycled Polyester, Bluesign Certified Taffeta w/ DWR
      Color Goodnight Gray / Torch
      Zipper Location Left
      Stuff Sack Compression stuff sack
      Insulation 800 FP Down


      Specs & Sizing

      Capacity 1
      Minimum Weight 3 lb , 14 oz / 1.76 kg
      Packed Size 14.5 x 10.5 in dia / 37 x 27 cm dia
      Temp Rating -20F / -29C
      ISO Lower Limit F / C
      Fill Type Down
      Fill Weight 2 lb , 5 oz / 1.06 kg
      Fits Up To 6' / 183 cm
      Shoulder Girth 63 in / 160 cm
      Hip Girth 58 in / 147 cm
      Knee Girth 53 in / 135 cm
      Compressed Volume 12.5
      Shipping Notes
      • Free Standard Shipping on $100+ Orders to the USA.
      • Except Preorder products are shipped in 48 hours.
      • Delivery to the USA:
      1. Standard Shipping : 3-10 business days
      • If time is of the essence, please consider selecting expedited delivery for faster service.
      Exchange/Return Notes
      • We offer a 30-day return/exchange service after receiving.
      • Final sale items are not eligible for returns or exchanges.
      • To process your return/exchange, please contact us at [email protected]
      • Please click here for more details>>> Return & Exchange Policy
      SKU: 598678379

      Discover Niche Categories That Outsell

      Top-Converting Item to Boost Your Average Order

      4.1 ★★★★★
      Based on 26 reviews
      Sort
      Highest Rating
      Newest First
      Oldest First
      Product Reviews
      H
      Verified Purchase
      Hapi
      Cuba, US
      ★★★★★ 5
      Sexy Comfort Casual Appeal
      Size: Medium, Color: Classic Medium Wash
      This is a very sexy in a comfortable easy flowing dress. The material feels good on the skin. It is thin and lightweight although long sleeves you will definitely want to wear a jacket or coat with this if you are wearing this in the winter time. It is comfortable and I like the fit on me. I am 5'5 weigh 150 and have large bust size 34DDD I ordered a medium and it fits me well. No gapping at the front where the buttons meet. I think this is a nice Jean dress for the price and the quality is nice. I like it
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on December 15, 2025
      A
      Verified Purchase
      Amazon Customer
      Dallas, US
      ★★★★★ 4
      Cute lightweight shirt-dress
      Size: XX-Large, Color: Classic Medium Wash
      Flattering, but a little tight in the chest for larger bosoms, and a little short so I wore it over leggings.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 15, 2026
      L
      Verified Purchase
      Letisia.F
      Birmingham, US
      ★★★★★ 5
      It’s really cute
      Size: X-Large, Color: Classic Medium Wash
      Perfect denim chambray dress.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 14, 2026
      W
      Verified Purchase
      Win win
      Pawtucket, US
      ★★★★★ 1
      NOT JEANS JUST THE COLOR OF IT
      Size: X-Large, Color: Black Wash
      This is not blue jean material so disappointing because the cut is cute.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on March 27, 2026
      J
      Verified Purchase
      Jessica
      Los Angeles, US
      ★★★★★ 5
      Fit
      Size: Medium, Color: Iced Blue Light Wash
      I love the dress!! I bought a M and I usually wear a size 8. It’s definitely prettier on than the picture. It comes right above the knee so you can wear it with or without leggings/stockings depending on the season.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on October 28, 2025

      recommand products