A close look at two sleeping bags buyers cross-shop. On the data the Hummingbird YF 20 is the stronger all-round pick, and the question is whether the Twin Quilt 20 still fits your budget or priorities.
| Feathered Friends Hummingbird YF 20 | Zpacks Twin Quilt 20 | |
|---|---|---|
| GearScore | 87✓ | 66 |
| Comfort rating | 30 °F | 30 °F |
| Weight | 26.1 oz✓ | 27.9 oz |
| Warmth-to-weight | 5.4 /100g✓ | 5.1 /100g |
| Packed size | 9.0 L | n/s |
| Fill power | 900 FP | 950 FP✓ |
| Price | $569✓ | $579 |
| Fill | Down | Down |
| Style | Bag | Quilt |
| Shape | Mummy | Quilt |
Highlighted cells mark the better spec: Hummingbird YF 20 in blue, Twin Quilt 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.
Put the Feathered Friends Hummingbird YF 20 next to the Zpacks Twin Quilt 20 and the trade-offs are clear. The Hummingbird YF 20 is the stronger pick on most of the specs that matter, while the Twin Quilt 20 makes its case on fill power.
The Hummingbird YF 20 is 2 oz lighter, stronger on warmth-to-weight, and $10 cheaper. The Twin Quilt 20 is higher fill power (950 vs 900). On the default GearScore the Hummingbird YF 20 leads 87 to 66.
Pick the Hummingbird YF 20 if you care most about low weight and warmth-to-weight, which makes it the better call for counting grams on long miles. Pick the Twin Quilt 20 if fill power matter more to you, or you are focused on your priorities.
The Feathered Friends Hummingbird YF 20. It is 2 oz lighter than the Twin Quilt 20.
The Feathered Friends Hummingbird YF 20. It is stronger on warmth-to-weight than the Twin Quilt 20.
The Feathered Friends Hummingbird YF 20, 87 to 66 on the default algorithm. You can re-weight the factors to match your trip.
The Hummingbird YF 20 is the stronger all-round pick here. Choose the Twin Quilt 20 if fill power is your priority.