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Big Agnes Torchlight 20 Review
Looking for a lightweight sleeping bag that adjusts to your sleep style? In this Big Agnes Torchlight 20 review, we cover how its customizable fit, quality down fill, and trail-friendly weight make it a standout option for versatile backpackers.
The Big Agnes Torchlight 20 is a 3-season mummy sleeping bag rated to 20°F, insulated with 850-fill DownTek™ water-repellent down. Its biggest innovation is the expandable side panels—zippered gussets on each side allow users to increase the bag’s width by up to 10 inches, offering a tailored or relaxed fit depending on your needs.
Weighing only 2 lbs 2 oz (regular), the Big Agnes Torchlight 20 blends lightweight performance with flexibility. The down is bluesign®-approved, RDS-certified, and treated to maintain loft even in damp conditions. Other features include a draft collar, vaulted footbox, and an ergonomic hood with internal cinch control.
Key Specifications
| Weight | 2 lbs 2 oz (regular) |
| Temperature Rating | 20°F (-6°C) |
| Insulation Type | 850-Fill DownTek™ Water-Repellent Down |
| Shell Material | 20D Nylon Ripstop with DWR |
| Zipper | Dual Zippers with Expandable Panels |
| Shape | Mummy with Expandable Fit |
| Stuffed Size | 7.5" x 15" |
Comparisons
Big Agnes Torchlight 20 vs Nemo Disco 15
The Nemo Disco 15 and Big Agnes Torchlight 20 both offer comfort-enhancing features, but the approach differs. The Disco 15 uses a spoon shape that provides extra space at the elbows and knees—perfect for side sleepers who toss and turn. It also includes Thermo Gills for heat venting and a pillow pocket for added comfort. However, it’s nearly a pound heavier and bulkier when packed. The Torchlight 20 uses zippered side panels to offer similar comfort with significantly less weight and more packability. It’s the better option for hikers who want comfort flexibility without sacrificing efficiency.
Big Agnes Torchlight 20 vs Therm-a-Rest Parsec 20
The Therm-a-Rest Parsec 20 features hydrophobic 800-fill down and a more traditional mummy shape with zoned insulation. It’s slightly heavier than the Torchlight but well-insulated and roomy for a standard cut. While both bags perform well in wet weather and offer 3-season warmth, the Big Agnes Torchlight 20 stands out with its expandable design that adapts to changing sleep needs. It’s also more compressible thanks to higher fill-power down. The Parsec is a great choice for simplicity and warmth, while the Torchlight shines in adjustability and custom comfort on varied trips
Pros & Cons Summary
| Feature | Torchlight 20 | Nemo Disco 15 | Therm-a-Rest Parsec 20 |
|---|---|---|---|
| Weight | ✅ Lightweight (2 lb 2 oz) | ❌ Heaviest (2 lb 11 oz) | ❌ Heavier (2 lb 4 oz) |
| Warmth | ✅ Excellent 20°F rating | ✅ Great 15°F rating | ✅ Good 20°F rating |
| Packability | ✅ Very compressible | ❌ Bulkier | ✅ Compressible |
| Comfort | ✅ Adjustable fit | ✅ Spoon shape | ✅ Roomy fit |
| Durability | ✅ High-quality materials | ✅ Tough shell | ✅ Strong build |
| Best For | Versatile backpackers | Side sleepers & comfort lovers | Balanced hikers |
Looking for the right sleeping bag for your outdoor adventure? Visit our Best Sleeping Bags guide.
Frequently Asked Questions
Can I adjust the width of the Torchlight 20?
Yes — zippered panels on each side expand the bag by up to 10 inches total.
Is the down treated for water resistance?
Yes — it uses DownTek™ hydrophobic down for improved performance in damp conditions.
Does it come with a compression sack?
It includes a stuff sack and mesh storage bag but no dedicated compression sack.
Is it comfortable for side sleepers?
Yes — the expandable panels provide more room for side sleeping without the bulk of a spoon-shaped bag.
What sizes are available?
The bag comes in regular and long lengths to fit most users.
Final Thoughts
The Big Agnes Torchlight 20 delivers impressive warmth, versatility, and custom comfort in a lightweight package. Its expandable fit makes it one of the most adaptable bags in its class—great for side sleepers, restless sleepers, or anyone who likes to fine-tune their gear. If you want a 3-season bag that flexes with your needs, the Torchlight 20 is well worth a look.
