
Big Agnes sleeping bags are designed for a range of outdoor adventures, from backpacking to camping. They are known for their roominess, comfort, and innovative features, such as the locking horseshoe zipper and the Flex Pad Sleeve system. With a focus on sustainability and performance, Big Agnes offers a variety of sleeping bag styles, including the traditional mummy bag, the Park Series, and the Doublewide, each with unique features like expandable panels and removable quilts. Proper storage and care are essential to maintain the bag's condition, and users should be aware of the specific packing techniques and storage requirements to ensure the bag's longevity. This includes techniques such as folding and rolling the bag tightly and utilizing the provided mesh storage sack or alternative packing methods.
| Characteristics | Values |
|---|---|
| Zipper | Locking horseshoe zipper |
| Zipper function | Allows partial unzipping for ventilation |
| Draft lining | Prevents cold air from entering and keeps warm air inside |
| Storage | Store in a mesh sack, or lay flat/hang in a dry, temperature-controlled environment |
| Loft restoration | Hang for a few hours, then lay it out overnight |
| Loft restoration (quick fix) | Use a dryer with no heat and tennis balls for 15 minutes, then shake it out |
| Sleeping bag type | Down or synthetic insulated fills |
| Sleeping bag temperature | Choose a rating below the coldest expected temperature |
| Sleeping pad | Fold in thirds lengthwise, roll tightly, and place in the stuff sack |
| Sleeping pad valves | Keep valves open and accessible during rolling/packing, close when done |
| Sleeping bag and pad combination | Big Agnes System bags attach the sleeping pad to the bag for comfort and warmth |
| Sleeping pad sleeve | Flex Pad Sleeve can accommodate pads between 20-25" wide |
| Sleeping bag solutions | Two bags (inner and outer) for different temperatures, or combined for the coldest nights |
| Expandable panels | Up to 10" of extra space, customisable |
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What You'll Learn

Folding and rolling techniques
When packing a Big Agnes sleeping bag, there are several methods you can use to fold and roll the bag to make it fit into its stuff sack. Here are some techniques to try:
- Z-Fold and Roll: Start by flipping over the sleeping bag so that the valves are on the underside. Begin at the bottom and fold it into thirds lengthwise. Make sure to keep the valves accessible and facing out. Roll the bag tightly, maintaining its compact shape without letting it widen as you go. Once fully rolled, open the deflate valve to release any remaining air. Close the valve, then place the rolled-up bag into the stuff sack.
- Roll Without Folding: This method involves simply rolling the sleeping bag tightly without any prior folding. Keep the valves open and accessible during the rolling process. When you reach the end, close the valves and continue rolling to finish. Finally, place the rolled-up bag into the stuff sack.
- Fold and Compress: Layer the sleeping bag with other items in your pack to make efficient use of space. You can fold the bag in thirds lengthwise or in any way that allows it to fit within the width of your pack. Use compression straps to secure the folded bag and compress it down further if needed. This method avoids the use of a stuff sack, allowing for more flexibility in packing.
Remember, it's important to ensure that your sleeping bag is rolled or folded tightly to minimize its overall size and make it easier to fit into the stuff sack or your backpack.
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Using a strap
Preparing the Sleeping Bag
Firstly, you'll want to ensure your sleeping bag is clean and dry before packing it away. Find a flat surface to lay your sleeping bag out, or hang it up if that's more convenient. Make sure the bag is completely unfolded and smooth out any creases. If your bag has a locking horseshoe zipper, as all Big Agnes sleeping bags do, ensure it's fully closed.
Folding the Sleeping Bag
Now it's time to start folding. Begin by flipping your sleeping bag so that the valves are on the underside. Start at the bottom and fold it into thirds lengthwise. It's important to fold it tightly and maintain a consistent width throughout the fold. Once you've finished folding, give it a good roll to ensure it stays compact.
Using the Strap
Take your strap and tightly wrap it around the folded sleeping bag. Cam straps are great for this purpose, but any sturdy strap will do. Pull the strap as tight as you can to compress the sleeping bag further. If your sleeping bag came with a stuff sack, now is the time to use it. Place the rolled-up sleeping bag inside the sack and close the valve.
Attaching to Your Backpack
Big Agnes sleeping bags can be quite bulky, so you might need to attach it to the outside of your backpack. A good place to attach it is at the top flap, or lid, of your backpack. This keeps the weight centred and makes it easier to carry. If your backpack has compression straps, you can use those to secure the sleeping bag in place.
And that's it! You've successfully packed your Big Agnes sleeping bag using a strap. This method is a great space-saver and will ensure your sleeping bag is secure and compact for your outdoor adventures.
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Zipper maintenance
Big Agnes sleeping bags are designed with a unique locking horseshoe zipper. This special internal design feature allows you to partially unzip your bag from the bottom up for ventilation. The bags also feature draft linings along the zipper to keep cold air out and warm air in.
To maintain the zipper:
- When getting in and out of the bag, use two hands and pull the top of the bag taut while clearing the draft liner from the path of the zipper to prevent the zipper from catching on the bag's material.
- Store your bag in a dry, temperature-controlled environment. Do not store it in an attic, garage, or damp basement as synthetic and down insulation can be damaged if compressed too tightly during extended storage.
- Hang the bag or lay it flat when not in use.
- If you use a storage sack, be sure to take the bag out and give it fresh air every so often to prevent mildew, especially if you live in a damp or humid environment.
- If your bag has lost some loft, you can put it in a dryer on no heat with tennis balls for 15 minutes, then hang or lay it out to loft for an hour.
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Storage tips
Big Agnes sleeping bags come with a mesh storage sack. If you don't have a dry, temperature-controlled area to lay or hang your bag, it is okay to store it in the provided sack. If you have a down bag, it's a good idea to hang it for a few hours and lay it out overnight before using it. This will help restore the loft.
If your bag has lost some loft, put it in a dryer on no heat with tennis balls for 15 minutes. Remove the bag, shake it out, and hang or lay it out to loft for an hour.
Be sure to take any bag out of its storage sack every so often and give it some fresh air to prevent mildew, especially if you live in a damp or humid environment. Mildew is not covered under warranty.
Do not store your bag in an attic, garage, or damp basement. Synthetic and down insulation can be damaged if compressed too tightly during extended storage.
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Sleeping bag styles
Big Agnes offers a range of sleeping bag styles, including the System bag, the Park Series, and the Doublewide.
The Big Agnes System sleeping bags are designed to attach to your sleeping pad, keeping you secure and comfortable. They feature no insulation between the sleeping bag and pad, reducing weight and bulk. The System bags also provide more room than traditional mummy-style bags and reduce friction noise. The Anvil Horn, Lost Dog, and Daisy Mae bags are examples of the System style.
The Park Series models are designed for those who want extra room and luxury. They feature a fully removable upper quilt for versatility and are designed to be used with 25"x78" pads. The King Solomon and Dream Island bags are part of the Park Series.
The Doublewide style is perfect for couples or those who want extra space. These bags can be converted into single sleeping bags by removing and folding the zip-off comforter. The Doublewide style can be used with a single 40"x72" or 50"x78" pad, or two 20"-25"x 72"-78" pads.
In addition to these styles, Big Agnes offers the traditional rectangular sleeping bag, which provides ample space for tossing and turning. However, rectangular bags may not retain as much warmth as other styles. For a balance between warmth and roominess, the semi-rectangular or barrel-shaped bag is a good option, as it has a tapered shoulder area and footbox to reduce dead air.
Finally, Big Agnes offers the mummy-style bag, which is designed to keep you warm and cosy while being lightweight. The mummy bag's tapered shape may, however, restrict movement for some sleepers.
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Frequently asked questions
Big Agnes sleeping bags come with a mesh storage sack. If you don’t have space to lay or hang your bag, it is okay to store it in the provided storage sack. If you live in a damp or humid environment, remember to take the bag out of its storage sack every so often and give it some fresh air to prevent mildew.
One way to pack your sleeping bag for backpacking is to fold it in thirds lengthwise and roll it up. You can also try z-folding and rolling tight, or just shoving it into your bag loose along with your tent.
ISO testing standards assume the sleeper will be wearing only base layers and a warm hat for optimal performance. Wool or cotton layers work best to help wick sweat away from the body and help regulate a comfortable body temperature for sleeping. We also recommend wearing socks to keep your toes warm when camping in cooler temperatures.
Big Agnes System sleeping bags are designed with a sleeve for attaching your sleeping pad. This keeps you secure on top of your pad and creates a comfortable sleeping setup. They are designed without insulation between your bag and your pad for maximum comfort and weight savings, so you'll want to pair a system bag with an appropriately insulated air sleeping pad.
Yes, any two Men's and Women's sleeping bags of the same style and zipper length can be zipped together to create a cozy doublewide sleeping bag for you and your partner!






































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