-18°C

Nemo Sonic 0 Down Sleeping Bag

-18°C Comfort Limit (EN13537:2012), 670g of 850 Fill Power Down (US Method)
Weighs 1200g (Regular bag)
Code: SS18257V
  • From £479.99
  • (FREE UK & EU Delivery)
Item out of Stock | Usually dispatched within 24 hours
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NEMO’s award-winning Sonic range of sleeping bags has been praised for being the only bags you'll need from -20 to 40 degrees. With all the best fabrics and premium 850 fill power down, Sonic will keep you smiling when most people are off the mountains. 

Nemo says:

The Backpacker Editor’s Choice Award Winning Sonic has been praised as the only bag you really need from -20 to 40 degrees. The premium suite of fabrics and 850 fill power down is complemented by adjustable Thermo Gills, which regulate temperature without letting cold drafts in. It’s made for variable mountain climates.

Nemo's Sonic sleeping bags are built to keep you warm, cozy and protected in variable mountain climates. They have produced a Sonic 15, 0 and -20 with comfort temperatures ranging from -9 to -29°C so there should be a bag for any condition.

20D nylon ripstop with DWR shell fabric, combined with 850 fill power down provides the ultimate protection. We like the stretch construction at the knees as it encourages side sleeping and allows you to easily change positions during the night. And lets face it, not many of us can keep still throughout the night.

What also makes it stand out is that it looks like it has 2 slits down the center of the bag, these are what Nemo call Thermo Grills. They unzip to let warm air out if you get too hot at night, allowing you to vent body heat without letting cold drafts in.

Comfort is what Nemo have obviously aimed for here, and we would say they've got it right.

- Reviewed by Ultralight Outdoor Gear

Help and advice:Choosing a sleeping bag advice
 EN 13537 rating for sleeping bags explained
 Sleeping bag shape and sizes advice
 Sleeping Bag features Page 1
 Sleepin bag features page 2
 All about down filling in sleeping bags
  • Award-winning design allows for temperature regulation in variable mountain climates.
  • Adjustable Thermo Gills vent body heat at your core without letting cold air rush in.
  • Stretch construction at the knees allows side sleeping.
  • 850 Fill Power down is 100% Responsible Down Standard (RDS) Certified – it is traceable and ensures humane treatment throughout the supply chain.
  • Oversized draft collar seals in heat and keeps cold air out.
  • Waterproof/breathable footbox keeps feet warm.
  • Offset zipper creates a thermally efficient seal.
RegularLong
  • Weight: 1200g (excludes stuff sack and compression bag)
  • Temp: 0F / -18C
  • Fits up to: 6' / 183 cm
  • Shoulder girth: 58 in / 147 cm
  • Hip girth: 55 in / 140 cm
  • Knee girth:  53 in / 135 cm
  • Packed size: 18.1 x 11 in / 46 x 28 cm
  • Weight: 1332g (excludes stuff sack and compression bag)
  • Temp: 0F / -18C
  • Fits up to: 6'6" / 198 cm
  • Shoulder girth: 65 in / 165 cm
  • Hip girth: 61 in / 155 cm
  • Knee girth: 56 in / 142 cm
  • Packed size: 18.1 x 11 in / 46 x 28 cm

Construction & Material

  • Shell Fabric: 20D Nylon Ripstop w/ DWR
  • Footbox Fabric: 40D Nylon Ripstop OSMO™ w/ DWR
  • Lining Fabric: 20D Nylon Mini Ripstop w/ DWR
  • Zipper Location: Left
  • Stuff Sack: Compression stuff sack, Cotton storage bag
  • Insulation: 670g(reg) 710g (long) of 850 FP Down
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