Big Agnes Greystone 30 Down Sleeping Bag

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A warm and cosy down bag that goes a long way to reduce cold spots and drafts from entering the bag.  

Big Agnes says: 

Our Greystone 30° mummy-style sleeping bag delivers high value and performance in a lightweight bag. Ideal for backpacking but versatile enough for couch surfing, it is insulated with DownTek™ and uses baffle construction for efficient heat distribution. If you’re in the market for a mummy shaped bag constructed with high quality, lightweight materials this bag is your ticket to getting out there in comfort and warmth!

Our Verdict

A warm and cosy down bag that goes a long way to reduce cold spots and drafts from entering the bag.It’s a generous-sized bag with plenty of room to toss and turn without the bag feeling constrictive. The Greystone has a nice well-fitting hood, an oversized interior anti-draft collar and an insulated tube along the hood, which all increase the bag’s warmth, and prevent cold air from entering the bag.

Its good for warm weather camping hear in the UK but I wouldn’t want to push it to far past its 3°C comfort limit.

– Reviewed by Ultralight Outdoor Gear

Features

• Our traditional down mummy bags deliver technical, lightweight performance to excel on and off the trail with high thermal value, compressibility, and comfort wherever you go
• Traditional mummy shape allows for lightweight and increased thermal value
• Contoured hood follows the shape of your head for a more comfortable fit
• Oversized interior anti-draft collar
• Low-profile cordlock lets you uncinch the hood with one hand
• Insulated tube along upper hood opening seals out drafts when cinched
• Anti-snag zipper for a smooth, quick zip
• Left zip, 65”/165cm YKK #5 anti – snag locking zipper
• Two-way zipper
• Zipper Garage
• Liner loops
• Mate together left and right zip bags
• Storage sack & stuff sack included
• No-draft collar and no-draft zipper
• Exterior loops for hang drying or storage

Specifications

Temperature Ratings

• Comfort: 3°C / 37°F
• Limit: -3°C / 27°F
• Extreme: -19°C / -2°F

Regular

• Our weight: 799g (excludes storage bags)
• Fits: 183cm / 6ft
• Brands bag weight: 822g / 1lbs 15oz
• Fill Type: 600 DownTek
• Total fill weight: 340g / 12oz
• Compressed size: 19 x 20cm / 7.5″ x 8″
• Stuff Sack Size: 20 x 44cm/ 8″ x 17.5″

Long

• Our weight: 888g (excludes storage bags)
• Fits:198cm /6’6″
• Brands bag weight: 879g / 1lb 15oz
• Fill Type: 600 DownTek
• Total fill weight: 397g / 14oz
• Compressed size: 19 x 20cm / 7.5″ x 8″
• Stuff Sack Size: 20 x 44cm/ 8″ x 17.5″

Material & Construction

• Shell: GRS certified recycled 20D 400T polyester ripstop with PFC-free water-repellent finish
• Lining: GRS certified recycled 20D 380T polyester taffeta with PFC-free water-repellent finish
• Baffled construction
• 600 fill DownTek™ repels water while maintaining insulating value – bluesign® Certified PFC-free water-repellent chemistry
• YKK #5 zipper

Help & advice:

• The Ultimate Guide to Lightweight Sleeping Bags
• Time-Saver Guide to Choosing a Sleeping Bag
• The EN13537 Standard
• About Big Agnes
• Big Agnes Sleeping Bags Buying Guide
• All About Down
• What is Bluesign?
• Why is ‘PFC Free’ Important?