Big Agnes Greystone Sleeping Bag
Best sustainable choice for backpackers seeking reliable warmth and comfort.
A reliable, sustainable choice for backpackers who prioritize warmth and moisture protection. It balances high-quality down insulation with eco-conscious materials, making it a versatile companion for both trail and travel.
$215.96
at
BAP! / WearBAP
More Greystone options
Who it's for
- Eco-conscious campers seeking high-quality gear with a smaller carbon footprint
- Side sleepers and restless campers who feel restricted in narrow bags
- Backpackers frequently trekking through wet, rainy, or humid environments
Who should skip it
- Ultralight backpackers prioritizing minimal pack volume and maximum space savings
- Long-distance hikers counting every ounce for multi-day mountain expeditions
- Summer campers who primarily sleep in mild or hot overnight temperatures
Performance breakdown
Thermal efficiency
Mummy shape traps body heat effectively for cold-weather camping.
Moisture management
DownTek insulation maintains loft and warmth even in damp environments.
Sustainability footprint
Recycled fabrics and PFAS-free coating set a high eco-conscious standard.
Packability
600-fill down compresses well but occupies more space than premium alternatives.
Weight-to-warmth ratio
Solid performance for backpacking, though not the lightest option available.
Durability
Robust recycled shell materials withstand the rigors of regular trail use.
Key Specs
Temperature Rating
20°F
Insulation Type
600 fill DownTek
Shell Material
Recycled fabric
Lining Material
Recycled fabric
Water Resistant
Yes
Water Resistance
PFAS-free coating
Sleeping Bag Shape
Mummy
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