NEMO Disco 15 Down Sleeping Bag
Specifications
| Weight | Packed Size (L) | Warmth Rating | Fill Weight | Fill Power | Fill Type | Sleeper Height | Seasons | Shape | MSRP |
|---|---|---|---|---|---|---|---|---|---|
| 2 lb 14 oz | 6.4 | 15°F | 23 oz | 650 | Duck Down | Up to 6 ft (Regular) | 3-season | Spoon | $299.95 |
Comfort & Warmth
The NEMO Disco 15 is built with a strong emphasis on sleeping comfort, especially for side sleepers, thanks to its signature spoon shape that provides extra room at the elbows and knees without creating cold spots. It’s insulated with 650-fill-power, PFC-free, hydrophobic down that is RDS certified for ethical sourcing, giving reliable warmth in conditions down to its 15°F (-9°C) lower limit. NEMO’s Blanket Fold™ draft collar mimics the feel of tucking in a blanket at home, sealing in heat around your neck and shoulders, while the Thermo Gills™ allow you to vent excess warmth without unzipping the bag, making it adaptable to fluctuating nighttime temperatures. A water-resistant footbox helps keep your feet warm and dry in damp tents, and the spacious 3D footbox maintains loft and circulation. Combined, these design choices make the Disco 15 a versatile cold-weather bag that’s just as comfortable in milder shoulder seasons as it is on frosty nights.
Weight & Packability
The NEMO Disco 15 offers solid cold-weather performance without being overly burdensome in your pack, weighing 2 lbs 11 oz for the regular size (2lbs 14 oz packed) - a reasonable figure for a spacious, feature-rich 15°F bag. While not in the ultralight category, its 650-fill-power down still compresses well to 6.4L, packing into an included compression stuff sack to a manageable size for multi-day trips. The lightweight 20-denier ripstop nylon shell helps keep bulk down while maintaining durability, and the bag’s slightly roomier cut means it won’t pack as small as a trim mummy bag but provides a noticeable boost in comfort for side sleepers and those who move around at night. For backpackers willing to carry a few extra ounces for a roomier, cozier night’s sleep, the Disco 15 strikes a balance between warmth, comfort, and trail-friendly packability.
Price
With a retail price of $300 (varies by size and gender-specific fit), the NEMO Disco 15 positions itself in the mid-to-upper tier of down sleeping bags, offering premium comfort features without the premium price tag of some ultralight brands. That cost includes NEMO’s signature spoon shape, Blanket Fold™ draft collar, and Thermo Gills™ for adjustable warmth, along with ethically sourced 650-fill-power, hydrophobic RDS-certified down. It’s also part of NEMO’s Endless Promise® program, meaning the bag is made from 100% recyclable PET fabrics and can be sent back at the end of its life for responsible recycling, which adds value for eco-conscious buyers. Considering its blend of cold-weather performance, innovative comfort features, and sustainable design, the Disco 15 delivers a strong return on investment for backpackers who prioritize both comfort and environmental responsibility.
Quality & Materials
The NEMO Disco 15 is built from high-quality, thoughtfully chosen materials designed to maximize both comfort and longevity. Its insulation comes from 650-fill-power, PFC-free, hydrophobic down that is Responsible Down Standard (RDS) certified, ensuring ethical sourcing and reliable loft even in damp conditions. The shell is made from 20-denier ripstop nylon with a durable water repellent (DWR) finish, striking a balance between durability, water resistance, and pack weight. Inside, a soft, breathable liner enhances next-to-skin comfort, while key design elements like the Blanket Fold™ draft collar, Thermo Gills™ vents, and a water-resistant 3D footbox improve thermal control and protect insulation from moisture. As part of NEMO’s Endless Promise® collection, the bag is also crafted from 100% recyclable PET fabrics, reflecting a commitment to sustainability without compromising performance. This combination of premium materials, eco-friendly construction, and clever design makes the Disco 15 a long-lasting, trail-ready choice for cold-weather comfort.
Consumer Sentiment: Pros & Cons
Pros:
- Roomy spoon shape ideal for side sleepers and restless movement
- Cozy comfort down to ~15 °F with ample insulation and draft control
- Breathable ventilation via Thermo Gills on warmer nights
Cons:
- Bulkier and heavier than some ultralight 15 °F bags
- Thermo Gills zippers may be challenging with gloves
Comparison to Competitors
Kelty Cosmic Down 20: The Disco 15 is warmer, roomier, and features more advanced ventilation options, while the Cosmic Down 20 is lighter and more budget-friendly.
Feathered Friends Swallow UL 20: The Swallow UL 20 is lighter, warmer, and more thermally efficient with a trimmer fit, but lacks the Disco 15’s extra space and comfort-focused features for side sleepers.
REI Co-op Magma 30: The Magma 30 is lighter, more compact, and better suited for mild three-season conditions, whereas the Disco 15 prioritizes warmth and interior space at the cost of extra weight.
Who It’s Best For
The Disco 15 is tailored for comfort-focused backpackers and car campers, especially side or stomach sleepers who value space to move. It’s perfect for those prioritizing sleep quality on shoulder-season adventures or lighter cold-weather nights. Not ideal for ultralight hikers or deep winter trips, but beloved by those who put sleep comfort first—even if it costs a pound or two more.
