Here is how these two sleeping bags compare on the numbers. Both are solid; the right one depends on the specs you care about most.
| Feathered Friends Hummingbird UL 20 | Enlightened Equipment Enigma 20 | |
|---|---|---|
| GearScore | 87✓ | 68 |
| Comfort rating | 30 °F | 30 °F |
| Weight | 23.9 oz | 21.2 oz✓ |
| Warmth-to-weight | 5.9 /100g | 6.7 /100g✓ |
| Packed size | 9.0 L | n/s |
| Fill power | 950 FP✓ | 850 FP |
| Price | $639 | n/s |
| Fill | Down | Down |
| Style | Bag | Quilt |
| Shape | Mummy | Quilt |
Highlighted cells mark the better spec: Hummingbird UL 20 in blue, Enigma 20 in amber. A blank spec is never counted as a win. A lower comfort rating in °F means a warmer bag, so the warmer bag takes that row. GearScore is the overall rating (0 to 100); re-weight it on the full bag comparison. Prices are current MSRP.
The Feathered Friends Hummingbird UL 20 against the Enlightened Equipment Enigma 20 is a study in priorities. The Hummingbird UL 20 wins on fill power, and the Enigma 20 pushes back on low weight and warmth-to-weight.
The Hummingbird UL 20 is higher fill power (950 vs 850). The Enigma 20 is 3 oz lighter and stronger on warmth-to-weight. On the default GearScore the Hummingbird UL 20 leads 87 to 68.
Pick the Hummingbird UL 20 if you care most about fill power, which makes it the better call for your priorities. Pick the Enigma 20 if low weight and warmth-to-weight matter more to you, or you are focused on counting grams on long miles.
The Enlightened Equipment Enigma 20. It is 3 oz lighter than the Hummingbird UL 20.
The Feathered Friends Hummingbird UL 20. It is higher fill power (950 vs 850) than the Enigma 20.
The Feathered Friends Hummingbird UL 20, 87 to 68 on the default algorithm. You can re-weight the factors to match your trip.
It depends on your priorities. Go with the Hummingbird UL 20 for fill power, or the Enigma 20 for low weight. The spec table above shows exactly where each wins.