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Big Agnes Greystone 30deg Sleeping Bag
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$229.95
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SKU: WX2*0741509
Overview
Built for backpacking trips where packability and warmth both matter, this sleeping bag is aimed at hunters and outdoor users who want a dependable cold-weather sleep system without unnecessary bulk. Its traditional mummy shape, contoured hood, and draft-sealing features are designed to help hold warmth in camp, while the recycled polyester shell and taffeta lining add a practical, modern material package. The 30-degree rating and 600 fill power DownTek insulation make it a solid choice for cool-to-cold nights, though it is still best matched to conditions and layering that fit the temperature range. Details like the two-way zipper, paired-bag compatibility, and hang loops add useful versatility for extended trips and basecamp use.
Why Hunters Choose the Big Agnes
600 Fill
Power DownTek RDS-certified down provides
Traditional Mummy
Shape supports lighter weight and
Recycled Polyester
Ripstop shell and taffeta lining
Pfas-free Water-repellent
Finish adds practical weather protection
Contoured Hood
No-draft collar help seal in
Key Features
- 30°F temperature rating for backpacking use
- 600 fill power DownTek RDS-certified down insulation
- Recycled polyester ripstop shell with taffeta lining
- PFAS-free water-repellent finish on shell and lining
- Traditional mummy shape for lighter weight and heat retention
- Contoured hood with oversized no-draft collar and no-draft zipper
- 65-inch YKK #5 anti-snag locking zipper with two-way design
Best Used For
- Backpackers wanting a 30-degree bag with a balance of warmth, packability, and comfort
- Hunters needing a mummy-shaped sleeping bag for colder overnight camps
- Users who want a down bag with recycled shell and PFAS-free water-repellent finish
- Couples or partners planning to pair left- and right-zip bags together
- Campers who value draft control features for more enclosed sleeping conditions
Specifications
| Collar | Oversized no-draft collar |
|---|---|
| Cordlock | Low-profile cordlock |
| Draft Tube | Insulated tube along upper hood opening |
| Exterior Loops | Yes |
| Hood | Contoured hood |
| Insulation | 600 fill power DownTek RDS-certified down |
| Insulation Type | 600 fill power DownTek(TM) insulation |
| Interior Loops | Yes |
| Liner Compatibility | Interior loops secure a liner for added warmth (sold separately) |
| Lining Material | Taffeta |
| Pairable | Left- and right-zip bags can be paired together |
| Shape | Traditional mummy shape |
| Shell Material | Recycled polyester ripstop |
| Storage | Exterior loops for hang drying or storage |
| Temperature Rating | 30degF |
| Water Repellent Finish | PFAS-free water-repellent finish |
| Zipper | 65" YKK(R) #5 anti-snag locking zipper |
| Zipper Garage | Yes |
| Zipper Type | Two-way zipper |
Pros
- 600 fill power DownTek RDS-certified down provides rated 30°F warmth.
- Traditional mummy shape supports lighter weight and improved body heat retention.
- Recycled polyester ripstop shell and taffeta lining add durable construction.
- PFAS-free water-repellent finish adds practical weather protection.
- Contoured hood and no-draft collar help seal in warmth.
- Left- and right-zip bags can be paired together for shared use.
Considerations & Trade-offs
- Rated to 30degF, so it is suited to cool-weather use rather than deep-cold conditions.
- The traditional mummy shape and contoured hood prioritize heat retention, which can feel more restrictive than roomier bag designs.
- A 65" zipper offers practical access, but it is still a single-side entry point compared with fully open or rectangular options.
- Added features like the no-draft collar, zipper garage, and liner loops improve comfort and versatility, but they also add complexity compared with a simpler sleeping bag.
Suggested Comparisons
- Backpacking sleeping bags
- Mummy sleeping bags
- Down sleeping bags
- Three-season sleeping bags
Suggested Accessories
- Sleeping bag liner
- Sleeping pad
- Compression sack
- Gear storage bag
Frequently Asked Questions
What temperature is the Big Agnes Greystone 30deg Sleeping Bag rated for?
The product description says it is designed to keep you cozy down to 30degF.
What insulation does this sleeping bag use?
It uses 600 fill power DownTek RDS-certified down, listed as 600 fill power DownTek(TM) insulation.
Does the Greystone 30deg Sleeping Bag have a water-repellent shell?
Yes. The shell and taffeta lining are described as recycled polyester ripstop with a PFAS-free water-repellent finish.
Can this sleeping bag be paired with another bag?
Yes. The description says left- and right-zip bags can be paired together.
Are there features to help reduce drafts?
Yes. It includes a traditional mummy shape, contoured hood, oversized no-draft collar, no-draft zipper, and an insulated tube along the upper hood opening.