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4-season Backpacking Sleeping Bags
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- Big AgnesGreystone 0 Sleeping Bag$399.95 - $419.95(0)0 reviewsTemperature Rating:0 FWeight:3.33 to 3.59 lbsInsulation Type:DownFeatures:Water-Resistant Down
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Related Expert Advice articles
This versatile backpacking sleeping bag from Exped strikes a balance between warmth, weight and compressibility—at a wallet-friendly price.
Read full article: Gear Review: Testing the Exped Terra 15 Sleeping Bag
Our experts recommend these nine sleeping bags for backpacking, including top picks from REI Co-op, Mountain Hardwear, Big Agnes, Therm-a-Rest and NEMO.
Read full article: The 9 Best Sleeping Bags for Backpacking of 2025: Staff Picks
How will you be using your liner?
- For backpackers, a mummy-shaped bag liner helps keep your sleeping bag free of dirt and body oils, helping it last longer. A liner can also be used in place of a sleeping bag in hot climates.
For travelers, a rectangular bag liner or travel sheet keeps you separated from bedding of questionable cleanliness or with possible bedbug infestations.
Which liner material is right for you?
- Silk: Very lightweight, compact and insulates in cold weather. Absorbent and breathable in warm weather. Price: moderate to expensive.
- Cotton: Strong, durable and absorbent, but not the lightest or most compact. Price: economical.
- Fleece and microfleece: Warmer, heavier, soft, moisture-wicking and quick-drying, but the mid- and heavyweight varieties are bulky. Price: moderate.
- Synthetics (e.g., CoolMax®): Moisture-wicking, breathable, ideal for humid conditions and stretchy for restless sleepers. Price: moderate.
- Insulated (e.g., Thermolite®): Adds enough warmth to greatly extend the range of a lightweight bag. It dries faster than cotton. Price: moderate to expensive.
Our five favorite budget sleeping bags include options for backpacking and car camping, plus a variety of temperature ratings and shapes.
Read full article: The Best Budget Sleeping Bags of 2025: Tested
Discover the differences between camping quilts and sleeping bags to help you choose the best option for your next adventure.
Read full article: Sleeping Bags vs. Quilts: Which is Right for You?
Read on to find our favorite wide sleeping bags for car camping, backpacking and more. The sleep sacks we tested are available in short, wide and long dimensions.
Read full article: The 4 Best Inclusive-Size Sleeping Bags of 2025: Tested



