SKU: 598678379

Nemo Sonic -20F/-29C Sleeping Bag

Sale price$396.00 Regular price$440.00
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Ships within 48 hours · Estimated delivery Oct 31 - Nov 5

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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

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      4.9 ★★★★★
      Based on 12 reviews
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      A
      Verified Purchase
      Ania
      Cuba, US
      ★★★★★ 5
      For good oral hygiene
      Color: Pink
      For people who, like me, have undergone oral surgery, this works incredibly well—and for those who haven't, it works just as well, as it helps ensure that nothing gets trapped between the teeth. It is an excellent complement to your oral hygiene routine.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 21, 2026
      P
      Verified Purchase
      Paris Bodhi
      Pawtucket, US
      ★★★★★ 5
      Soothing, moisture-locking oral coat that eliminates morning dryness without burning your mouth
      Flavor Name: Mint, Size: 33.8 Fl Oz (Pack of 1)
      Standard alcohol-based mouthwashes give a powerful blast of burning freshness, but they completely dry out your tissues and make a lack of natural saliva much worse. Biotene Dry Mouth Oral Rinse fixes this issue entirely by skipping the harsh astringents. It uses a specialized mouth-moisturizing system packed with hydrating humectants like glycerin, xylitol, and sorbitol. This combination creates a slippery, lubricating layer over your gums and cheeks that mimics your natural saliva to keep your mouth comfortable and damp. The daily utility of this formula is perfect if you struggle with persistent stickiness, difficulty swallowing dry foods, or a scratchy throat. It provides immediate relief that keeps working for up to four hours, soothing sensitive oral tissue and actively fighting the bacteria that cause chronic bad breath. The gentle, sugar-free fresh mint flavor leaves you feeling genuinely clean and maintains a healthy, balanced pH level in your mouth to protect your teeth from potential cavities. It is a fantastic, non-burning formula to use right before bed or throughout the day to completely wash away that uncomfortable, parched feeling and wake up with lasting comfort.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on June 1, 2026
      D
      Verified Purchase
      Dave & Steph
      Charlottesville, US
      ★★★★★ 5
      Very Helpful for Dry Mouth After Gastric Bypass
      Flavor Name: Mint, Size: 33.8 Fl Oz (Pack of 1)
      This mouthwash has been very helpful for dealing with dry mouth, especially with the body changes that can happen after gastric bypass surgery. It’s gentle, doesn’t burn like traditional mouthwash, and helps keep my mouth feeling hydrated and fresh. Pros Great for dry mouth: Provides noticeable relief and keeps my mouth feeling moisturized. Gentle formula: No strong burning sensation like alcohol-based mouthwashes. Fresh mint flavor: Clean taste that isn’t overpowering. Large bottle: The 33.8 oz size lasts a long time. Good for post-surgery changes: Works well for dryness that can happen after gastric bypass. Considerations The mint flavor is mild, which some people may prefer, but those who like a strong mint may find it subtle. Best results come from using it regularly. Best For People experiencing dry mouth Post-surgery dry mouth relief Nighttime mouth dryness Anyone wanting a gentle mouthwash without alcohol Final Verdict A great option if you struggle with dry mouth. It’s gentle, refreshing, and provides lasting relief. It has been especially useful during recovery after gastric bypass when dry mouth can be more noticeable.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on March 17, 2026
      N
      Verified Purchase
      Nancy88
      Charlottesville, US
      ★★★★★ 5
      Very good product
      Flavor Name: Mint, Size: 33.8 Fl Oz (Pack of 1)
      I love this product. It’s very helpful if you suffer from dry mouth and it makes your breath smell good
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on May 31, 2026
      R
      Verified Purchase
      Robin L. Wayman
      Chelsea, US
      ★★★★★ 4
      Better than regular mouthwash
      Flavor Name: Fresh Mint, Size: 16 Fl Oz (Pack of 1)
      Works better than regular mouthwash. It's not miraculous but it helps dryness.
      WAS THIS REVIEW HELPFUL?YesReportShare
      Reviewed in the United States on March 18, 2026

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