Feathered Friends Tanager 20 CFL Ultralight Sleeping Bag Review
Brand: Feathered Friends · Category: sleeping-bag · Price: $489 - $559
Buy the Feathered Friends Tanager 20 CFL if you're an ultralight backpacker or thru-hiker who prioritizes extreme warmth-to-weight and are comfortable with a minimalist, streamlined sleep system. Skip it if you need versatile temperature regulation, prefer an integrated hood, or aren't ready to pay a premium for specialized ultralight gear.
Specs
| Shape | Hoodless, zipperless, full-length mummy-style/trim bag |
|---|---|
| Length | 68 in or 74 in |
| Weight | 18.6 oz |
| Zippers | None |
| Fill Type | 950+ fill power goose down |
| Fill Power | 950+ |
| Packed Size | Not officially specified in sources reviewed; ultralight/down-compressible |
| Shell Fabric | 7D Pertex Quantum w/ DWR coating; 15D ripstop nylon lining |
| Comfort Rating | Not officially published; reviewer consensus places it as a true 20°F bag for many users |
| Temperature Rating | 20°F |
Strengths
- Extremely light for a 20°F sleeping bag
- Very high-loft 950-fill down provides excellent warmth-to-weight ratio
- Zipperless, hoodless design saves weight and reduces drafts
- Roomier than many ultralight mummy bags in the shoulders and hips
- Soft, comfortable lining fabric compared with many ultralight bags
- Simple construction reduces failure points and wear
- Works well for cold sleepers and ultralight thru-hiking setups
Complaints
- No zipper makes it harder to vent on warm nights
- Hoodless design is less versatile in colder, windier conditions unless paired with head insulation
- Niche design is less convenient than a standard mummy bag for many users
- Price is high for a specialty ultralight sleeping bag
- Limited temperature flexibility compared with a quilt or zippered bag
- Fit may be too trim for some broad-shouldered users unless wide sizing is chosen
Comfort And Fit
While it's an ultralight mummy, the Tanager surprises users with more room in the shoulders and hips than many competitors, allowing for comfortable side sleeping. Feathered Friends uses a supple 15D ripstop nylon for the lining, which feels much softer and less clammy against the skin compared to the crinkly, plasticky fabrics sometimes found in ultralight gear. This means you won't feel completely restricted, a common complaint with many trim-fitting bags.
Design Tradeoffs
This bag takes a 'less is more' approach with a hoodless, zipperless design. Ditching the zipper not only shaves weight but also eliminates a major point of heat loss, making it feel more draft-proof than many ultralight quilts. However, this means you lose the ability to vent on warmer nights, and you'll need to remember to pack a separate hat or balaclava to keep your head warm in colder conditions, moving towards a modular sleep system.
Warmth And Weight
The Tanager 20 CFL is a true featherlight champion, weighing in at just 18.6 oz, making it one of the lightest 20°F sleeping bags available. This incredible warmth-to-weight ratio comes from its use of 950+ fill power goose down, which means one ounce of this down lofts (fluffs up) to over 950 cubic inches, trapping more insulating air for less material. If you're a cold sleeper or pushing fast-and-light objectives, this bag delivers serious warmth without bogging down your pack.
Price And Competition
With a price tag that can reach up to $469, the Tanager is a significant investment. This premium reflects both the use of top-tier 950+ fill power down and Feathered Friends' reputation for high-quality, often domestically made gear. While it's more expensive than some entry-level options, its ultralight warmth and draft-proof design position it against other high-end options like Katabatic Gear quilts or Western Mountaineering bags, providing a specific alternative for those prioritizing a sealed, minimalist warm package.
Materials And Durability
Feathered Friends builds this bag with a 7D Pertex Quantum shell treated with a DWR (Durable Water Repellent) finish, which helps shed light moisture without adding significant weight; 7D (7-denier) means the individual threads are incredibly fine, making for a very light but delicate fabric. Its simple, zipperless construction reduces potential failure points, contributing to long-term durability, as there's less to break or wear out compared to a traditional zippered bag.