Big Agnes Greystone 30 Down Sleeping Bag Comfort Rating 3 °C
Down-fill traditional mummy sleeping bag
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What's Included
Storage sack & stuff sack included
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size + Specifications
Regular
Total Weight:
822g
Fill Type:
600 DownTek™
Total Fill Weight:
340g
Compressed Bag Size:
19 x 20cm
Stuff Sack Size:
14L 20 x 45cm
Max User Height:
183cm
Recommended Pad Size:
Works with any pad size or style. Use higher insulation pads in colder conditions.
Shoulder Girth:
152cm
Hip Girth:
137cm
Foot Girth:
91cm
Long
Total Weight:
879g
Fill Type:
600 DownTek™
Total Fill Weight:
397g
Compressed Bag Size:
22 x 23cm
Stuff Sack Size:
14L 20 x 45cm
Max User Height:
198cm
Recommended Pad Size:
Works with any pad size or style. Use higher insulation pads in colder conditions.
Shoulder Girth:
160cm
Hip Girth:
145cm
Foot Girth:
99cm -
what we think
The Big Agnes Greystone 30 is a lightweight and versatile three-season down sleeping bag best suited to mild to moderately cool conditions. Filled with 650-fill DownTek water-repellent down, it offers solid warmth for its weight while still packing down small enough for multi-day backpacking or bikepacking adventures.
At Valley and Peak, we see the Greystone 30 as a great option for spring, summer and early autumn use in the UK, especially for those who want a dependable and comfortable bag without carrying unnecessary bulk or weight. It is ideal for wild campers, festival-goers or long-distance trekkers who value packability and performance at a sensible price point.
The fit is a traditional mummy shape, designed to retain heat efficiently while still giving you enough space to move. Key features like the insulated draft collar, no-draft zip construction and well-shaped footbox help keep warmth in and cold spots out. The shell fabric is soft but durable enough for regular use, and overall build quality is solid and consistent with the rest of the Big Agnes range.
It is worth noting that the Greystone 30 is best for milder nights. If you are someone who sleeps cold or plans to camp in exposed or high-altitude areas, you may want to consider a warmer option in the same range. That said, for typical British summer nights and shoulder-season trips with a reliable sleeping mat, this bag performs very well.
In summary, the Big Agnes Greystone 30 is a lightweight, well-made and comfortable down sleeping bag ideal for most three-season use in milder conditions. It offers excellent packability, practical features and dependable warmth, making it a smart choice for summer adventurers and weekend explorers alike. -
Weight
822 g
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Fill Power
600
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Season Rating
3-Season
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Comfort Limit
-3°C
"The Valley and Peak promise is built on three pillars: thoughtfully curated gear, exceptional customer service, and a genuine love for the outdoors. As an independent, family-run business, we carefully select products from a wide variety of cottage gear brands and trusted names, ensuring that each item is rigorously tested and loved by our team. Our customer service is a cornerstone of our brand, offering personalised support to help you choose and care for your gear with confidence"
Jim De'Ath, Managing Director