The NEMO Disco 15 is the sleeping bag built for the 70% of people who sleep on their side. Its signature Classic Spoon™ shape adds extra room at the elbows and knees, so side sleepers can curl up and shift positions without the wrestling match that a traditional mummy bag forces on you.
NEMO Equipment built its reputation on clever, comfort-first designs, and the Disco is the clearest expression of that philosophy: a three-season down bag that trades a few ounces of ultralight purity for the ability to actually sleep through the night. It’s filled with traceable, RDS-certified 650-fill down and backed by a lifetime warranty.
Real Price & Specs (checked September 2026)
| Spec | NEMO Disco 15 (Men’s Regular) |
|---|---|
| Price | $319.95 list (often ~$280 on sale) |
| Weight | 2 lb 11 oz / 1.22 kg |
| Temperature rating | 15°F / -9°C comfort |
| Fill | 650 FP hydrophobic, RDS-certified down |
| Shape | Classic Spoon™ (room at elbows/knees) |
| Fits up to | 6 ft / 183 cm |
| Warranty | Lifetime |
Prices are from NEMO’s official store and public listings at the time of writing; specifications are from NEMO’s published product data.
Room to Actually Sleep
The Disco’s defining feature is the Classic Spoon shape — instead of a straight mummy taper, the bag widens at the elbows and knees. For side sleepers, that means you can bend your knees and draw up an arm without compressing the insulation against the shell (which is what makes you cold in a regular mummy bag). It’s a small geometric change with an outsized effect on real-world comfort.
Two more features make it genuinely livable. The Thermo Gills™ are zippered vents on the chest that let you dump heat without fully unzipping — perfect for warmer-than-expected nights. And the Blanket Fold™ draft collar can be tucked up under your chin for warmth or folded back to vent. The footbox is waterproof/breathable to shrug off tent condensation.
What We Love vs. What Could Be Better
✅ What We Love
- Spoon shape is a game-changer for side sleepers
- Thermo Gills let you fine-tune temperature
- RDS-certified, hydrophobic down fill
- Waterproof footbox handles tent condensation
- Lifetime warranty
❌ What Could Be Better
- 650 fill power is heavier than premium 850+ bags
- 2 lb 11 oz is heavy for a 15°F ultralight bag
- Back sleepers won’t feel the benefit of the spoon shape
- Bulkier packed size than premium down bags
Who Should Buy the NEMO Disco 15
Great for: side and combination sleepers who’ve suffered in mummy bags, three-season backpackers who prioritize a real night’s sleep over a few ounces, and campers who want room to move.
Look elsewhere if: you sleep flat on your back, you’re a gram-counting thru-hiker, or you need a bag rated for true winter conditions.
Final Verdict
The NEMO Disco 15 is the sleeping bag side sleepers have been waiting for. The Spoon shape genuinely changes how the bag feels to sleep in, and the Thermo Gills and Blanket Fold add a level of temperature control most bags lack. It’s not the lightest 15-degree bag on the shelf, but if you’ve ever woken up cramped and cold in a mummy bag, the trade is absolutely worth it. For side sleepers, this is the default recommendation.
Scores are our editorial ratings on a 1–10 scale (the reviewer’s own assessment), not merchant-provided or user-generated data. This page may contain affiliate links — if you buy through them we may earn a commission at no extra cost to you.
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