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A comfortable, well-balanced three-season down sleeping bag
Big Agnes says:
Our Women's Greystone 20° mummy-style sleeping bag delivers value and performance in a lightweight bag with sustainability in mind. Ideal for backpacking but versatile enough for couch surfing, the Greystone sleeping bags feature 650 fill DownTek™ insulation, recycled shell and lining fabrics, and a water-resistant coating to repel moisture. This bag is your ticket to getting out there in comfort and warmth!
Our Verdict
The Women’s Greystone 20 focuses on straightforward performance, with a women’s specific fit that provides a slightly closer, more efficient feel without becoming restrictive. The 650 fill down offers dependable warmth, and the --5 °C comfort rating, so I'd use it on winter nights, but it's not something I’d use as my dedicated winter summiting bag. You will get the best use of this bag in early spring, late autumn, and at the beginning of winter.
At 1120g, it is not aimed at cutting weight to a minimum, but it packs down reasonably small. The shell fabric has a slightly more durable feel than lighter alternatives, which gives some reassurance over repeated use. The treated down copes well with damp air, maintaining loft better than untreated fills.
Overall, it delivers a comfortable and dependable sleep system without chasing extremes in weight or pack size.
- Reviewed by Ultralight Outdoor Gear
Features
- Our Women’s Greystone bags have a combination of increased insulation, as well as a fit that is shaped to contour to a woman’s body, creating an efficient sleeping bag for women, and ultimately a better night’s sleep.
- Traditional mummy shape allows for lightweight and increased body heat retention
- Contoured hood follows the shape of your head for a more comfortable fit
- Oversized no-draft collar and no-draft zipper to keep the cold out
- Low-profile cordlock lets you uncinch the hood with one hand Insulated tube along upper hood opening seals out drafts when cinched
- Anti-snag locking zipper for a smooth, quick zip
- 55"/140cm YKK #5 zipper - regular size
- Two-way zipper and Zipper Garage positioned on sleeper's right side of bag
- Mate together left (All-Gender) and right (Women's) zip bags to share warmth with your tent mate
- Interior loops secure a liner for added warmth - liner sold separately
- Exterior loops for hang drying or storage
Specifications
Regular -
- Weighs: 1120g
- Fits: fits up to 168cm
- Stuff Sack Size: 23 x 51cm
- Fill Power: 650
- Fill Weight: 22oz / 624g
- Comfort Temperature: 22°F / -5°C
- Limit Temperature: 10°F / -12°C
- Extreme Temperature: -26°F / -32°C
Material & Construction
- Shell: Recycled polyester ripstop with water-repellent finish without intentionally added PFAS
- Lining: Recycled polyester taffeta with water-repellent finish without intentionally added PFAS
- Fill: 650 fill Downtek™ PFC-Free with bluesign® Certified water-repellent chemistry
