Nemo Coda 10/20 Endless Promise Sleeping Bag 23F/-5°C

The Nemo Coda Endless Promise® is a high-performance ultralight sleeping bag engineered for backpackers, mountaineers, and climbers who demand maximum warmth with minimal weight. With a sleek, tapered silhouette and premium materials throughout, it delivers exceptional packability, efficient insulation, and technical performance for demanding environments.

Inspired by a classic mummy shape, the Coda uses a refined, streamlined cut to eliminate excess bulk and reduce weight, making it ideal for alpine pushes, multi-day treks, and minimalist expeditions. Its compact, packed size means it disappears into your pack, while still delivering the warmth needed for cold, exposed conditions.

Filled with 800 fill power hydrophobic down, the Coda offers an outstanding warmth-to-weight ratio: High loft for efficient heat retention, water-resistant treatment for damp mountain conditions, RDS-certified for responsible sourcing. Strategically placed vertical and horizontal baffles prevent down migration and maintain consistent warmth across the body.

The Coda introduces NEMO’s Headwall™ draft guard, a unique internal collar that wraps fully around the neck to create 360° insulation and eliminate cold spots. Combined with a sculpted hood and insulated footbox, it delivers reliable warmth for high-altitude and cold-weather use.

Mountain conditions can vary, and the Coda adapts: Thermo Gill™ vent allows controlled heat release without cold drafts, zippered footbox opening provides instant ventilation or freedom of movement. This makes it versatile across a wide temperature range, from chilly bivvies to milder nights.

Endless Promise: Part of Nemo’s Endless Promise® initiative, this sleeping bag is built to be 100% recyclable at the end of life, reducing environmental impact without compromising performance. MORE INFO

More Help? For further assistance on choosing your down sleeping bag, we have an article explaining fill power, the pros and cons of down over synthetic insulation and more info on caring for your bag available to view here: A Guide to Down Sleeping Bags.

Features

• Efficient, tapered mummy design cuts excess weight for ultimate packability.
  
• Updated Thermo Gill™ vent extends the comfort range and creates fine-tuned control with its multistage zipper system.
  
• Filled with premium 800 FP hydrophobic, PFAS-free, RDS-certified down. Products certified to the Responsible Down Standard (RDS) contain down or feathers from farms certified to animal welfare requirements.
  
• Zippered opening at the foot of the bag allows direct access and instant ventilation.
  
• All-new Headwall™ internal draft guard provides 360-degree insulated, plush protection from the cold.
  
• NEMO takes full responsibility for all Endless Promise® products, from production to end of life, and designs them for 100% recyclability to keep out of the landfill.
  
• Hood and footbox are reinforced with recyclable, waterproof material to prevent tent condensation from soaking into the bag's fabric.
  
• Streamlined Cohaesive™ hood cinch hardware is bonded to the material and more integrated into the bag's design than traditional dangling designs.
  
• What's included: Compression Sack, Mesh Storage Cube.

Specification 

• Intended use: Camping, Backpacking, Alpine 
• Season Rating: 3-4 season.
• Sleeping bag Weight: Regular: 1.1kg / Long: 1.25kg
• Maximum User Height: Regular: 183cm / Long: 198cm
• Comfort Temp: -5°C
• Comfort Temp Limit: -12°C
• Down treatment: Hydrophobic, PFC-Free Down
  
• Max Shoulder Circumference: Regular: 160cm / Long: 170cm
• Shell Fabric: 100% Recycled Polyester Ripstop w/ C0 DWR
• Lining: 100% Recycled Polyester Ripstop w/ C0 DWR
• Footbox Material: Waterproof/breathable w/ C0 DWR
  
• Fill power: 800
  
• Fill Weight: Regular: 690g / Long: 830g
• Compression Size: Regular: 29 x 18.5cm / Long: 30 x 18.5cm
  
• Zip Configuration: Centre
• Colour: Goodnight Gray
  
• Cut: Mummy