
Sleeping bags are essential for camping and hiking trips, providing warmth and comfort during sleep. However, they can be bulky and challenging to fit into backpacks, especially when space is limited. The process of compressing and packing a sleeping bag can be tedious and often requires specific techniques to ensure it fits snugly in the bag without damaging the material. This is a common issue faced by many backpackers and hikers, who must balance the need for a warm and comfortable sleeping bag with the limited space available in their packs.
| Characteristics | Values |
|---|---|
| Sleeping bag not fitting in backpack | Compress the bag by removing air, folding, rolling, or stuffing into a stuff sack |
| Compressing sleeping bag | Use a smaller stuff sack, or stuff directly into the backpack's sleeping bag compartment |
| Types of sleeping bags | Down bags are easier to compress; synthetic bags like Polarguard are less compressible |
| Backpack features | Some backpacks have distinctive stuffing sack straps or sleeping bag loops; others have compression straps or a lid that can be used to attach the sleeping bag |
| Fit of sleeping bag | A snug fit is ideal for warmth, but comfort is also important; consider shoulder girth and hip girth when choosing a bag |
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What You'll Learn

Compressing a sleeping bag into a backpack
Choose the Right Sleeping Bag
Select a sleeping bag that is designed to be compressible and packable. Down sleeping bags, for instance, tend to compress better than synthetic ones. If you prefer a synthetic bag, consider one made with Primaloft Sport, which is highly compressible. Additionally, a bag with a lower temperature rating will usually be more compressible, as it will be less bulky.
Use a Stuff Sack
A stuff sack, also known as a compression sack, can be very effective in reducing the volume of your sleeping bag. Choose a sack that is slightly smaller than your sleeping bag to maximize compression. Before purchasing, ensure that the stuff sack can be fully compressed without causing damage to the bag, especially if it is smaller than the recommended size. Oversized stuff sacks can also be useful, as they can fill in the gaps between other items in your backpack.
Compressing Techniques
When using a stuff sack, always stuff the sleeping bag from the foot or tail part to prevent air from getting trapped. Stuff all sides simultaneously to avoid ballooning. After compressing, apply body pressure from the top to further compress the bag. You can also try turning the bag inside out, but this may not be suitable for all types of bags. Another technique is to lay the sleeping bag flat on the ground, crawl across it to press out the air, fold it lengthwise, and then roll it tightly from the head end, as this is usually wider.
Attaching the Sleeping Bag to Your Backpack
There are several ways to attach your compressed sleeping bag to your backpack. Many backpacks come with distinctive stuffing sack straps or sleeping bag loops specifically for this purpose. If your backpack doesn't have these features, you can tie the backpack to the external frame or use compression straps to wedge the sleeping bag between them. If your backpack has a lid, you can close it over the top of the sleeping bag. Alternatively, if your backpack has loops and your stuff sack has straps, you can attach the bag to the outside by pulling the straps through the loops and tightening them.
Packing Considerations
When packing your backpack, it's essential to distribute weight evenly and create a stable center of gravity. Bulky items like sleeping bags are typically placed in the bottom zone of the backpack, along with items you won't need until you make camp. Soft items can be wrapped around bulky gear to prevent shifting and fill gaps. Visualize stacking cordwood—you want to lay down rows, not build columns.
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Choosing the right sleeping bag size
Shoulder Girth
The shoulder girth of a sleeping bag refers to the circumference of the bag across the shoulders. This measurement is crucial in determining the roominess of the bag. For men, a 60-inch shoulder girth will feel snug, while a 64-inch bag will offer more comfort and space. Women's sleeping bags typically have a narrower shoulder girth, ranging from 56 to 60 inches. The best way to find your ideal shoulder girth is to test out different bags and find the size that offers the right balance between comfort and warmth.
Hip Girth
Hip girth is another important consideration when choosing a sleeping bag. This measurement refers to the circumference of the bag across the hips and varies primarily based on whether it is designed for men or women.
Length
When considering the length of a sleeping bag, it's essential to ensure that your feet are not pushing against the end when the hood is snug around your head. If your feet are compressing the insulation at the bottom of the bag, it will be less warm. However, having extra room at the bottom can be advantageous, as it allows you to keep clothing and footwear inside the bag, which is useful for keeping them warm during winter camping trips.
Hood
A proper fitting hood is crucial for retaining warmth. It should wrap around your head comfortably and naturally, without feeling too tight. A good test is to ensure that the hood moves with your head as you roll from side to side.
Compressibility
If you plan to carry your sleeping bag in a backpack, consider the compressibility of the bag. Down sleeping bags are generally easier to compress and take up less space than synthetic bags. However, synthetic bags have their advantages, such as better moisture resistance. If compressibility is a priority, look for bags made with materials like Primaloft Sport, which offer superior compressibility compared to other synthetic options.
Storage in Backpack
When packing your sleeping bag into a backpack, there are several techniques you can use to save space. One method is to stuff the bag from the foot end, preventing air from being trapped in that area. Another technique is to roll the bag tightly after laying it flat and crawling across it to remove the air. You can also try folding the bag in half lengthwise and then rolling it up. Experiment with different methods to see which works best for your bag and backpack setup.
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The importance of a sleeping bag hood
A sleeping bag hood is an important feature to consider when purchasing a sleeping bag. While some people dislike the restrictive feeling of a hood, it is undeniable that a hood makes a significant difference in retaining heat. This is especially true in cold weather conditions, where the heat that would otherwise escape from your head is trapped inside the bag, keeping you warm.
Secondly, the hood provides protection from the elements. When camping outdoors without a tent, the hood acts as a barrier against wind, keeping your head and face shielded from the breeze. Additionally, in extremely cold conditions, a snug-fitting hood can protect your neck from the cold, as the area where your jugular passes through is susceptible to heat loss.
It is worth noting that the effectiveness of a sleeping bag hood depends on its fit. A properly fitting hood should wrap comfortably around your head without feeling too tight. It should move with your head as you roll from side to side, ensuring that you can sleep warm and comfortable throughout the night.
When packing a sleeping bag with a hood, it is essential to consider the compression and folding techniques. Compressing your sleeping bag into a stuff sack can be done in various ways. One method involves laying the bag flat, crawling across it to press out the air, folding it lengthwise, and then rolling it tightly from the top end, where the hood is located. This process helps minimize the space it takes up in your backpack.
In conclusion, the importance of a sleeping bag hood lies in its ability to retain heat and provide protection from the elements, making it a crucial feature for cold-weather camping or sleeping outdoors without a tent. However, individual preferences regarding the restrictive feeling of the hood should also be considered when deciding whether to opt for a hooded sleeping bag.
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Attaching a sleeping bag to a backpack
Compressing a sleeping bag into a backpack is a tricky affair. The first step is to get a sleeping bag that can be compressed into a manageable size. Down sleeping bags are a lot more compressible than synthetic ones. The cheaper the sleeping bag, the larger it will be.
There are three types of backpacks that are best suited for attaching a sleeping bag:
- Hiking Backpacks: These usually come with built-in loops and straps specifically designed to hold extra gear like sleeping bags.
- Travel Backpacks: These usually have enough space and additional compartments to accommodate a sleeping bag.
- Hybrid Backpacks: These are versatile and can switch between hiking and urban use, but they may require extra attachments like carabiners or bungee cords.
If your backpack has distinctive stuffing sack straps or sleeping bag loops, use them to attach the sleeping bag. If not, you will have to improvise. Here are some methods to secure a sleeping bag to your backpack:
- Using the backpack's straps: This is the most common method. Simply secure the sleeping bag with the built-in straps or additional paracord.
- Using compression straps: Most packs have compression straps on their sides. It is easy to wedge the sleeping bag between the compression straps and the backpack cavity.
- Using clips: Some packs come with clips attached to the compression straps, making it easy to attach and detach the sleeping bag.
- Using a lid: If your backpack does not have straps but has a lid, you can close the lid over the top of the sleeping bag to secure it.
- Using an external frame: Some backpacks have an external frame with multiple attachment points, making it easy to find a spot to attach the sleeping bag.
- Always stuff your bag from the foot/tail part first to prevent air from pulling down into that area.
- When stuffing the bag inside, stuff all sides simultaneously to avoid the bag from ballooning up and retaining air.
- Apply body pressure from the top after putting the compressed bag inside the stuff sack to make it more compressed.
- Turn the bag inside out (only applicable to some bags).
- Fold the sleeping bag to match the width of your backpack, especially if it is square or rectangular in shape. This will make it easier to secure and prevent it from swinging while you walk.
- Roll the sleeping bag tightly, especially if it is mummy-shaped. Start from the foot end to squeeze out any trapped air.
Remember, the key is to make your sleeping bag as compact as possible before attaching it to your backpack.
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Sleeping bag material and warmth
The material and design of a sleeping bag are crucial factors in determining its warmth and packability. Sleeping bags are designed to trap heat radiated by the human body, with various temperature ratings indicating how efficiently a bag retains heat. The right sleeping bag for you will depend on factors such as the climate of your camping destination, your budget, and the type of activity you plan to use it for.
Synthetic vs Down Insulation
Synthetic sleeping bags are filled with polyester fibres, whereas down bags contain duck or goose feathers. Synthetic bags are generally heavier, bulkier, and less expensive than down bags of comparable warmth. They are also better at retaining insulating properties when wet or damp. Synthetic bags can be stored compressed for longer periods without losing their insulating ability. However, down bags have a higher warmth-to-weight ratio, making them lighter and more compressible than synthetic bags. Water-resistant down bags are now available, addressing the traditional weakness of down in humid and wet environments. Down bags are also longer-lasting, but they are more expensive and require careful maintenance.
Fabric and Design
The outer fabric of sleeping bags is typically made from durable polyester or nylon with a water-repellent finish to protect the insulation from moisture. The inner fabric is designed to be soft and warm, with some bags featuring a cozy flannel liner. A snug-fitting hood can significantly increase warmth by preventing heat from escaping from your head. The shape of the bag also affects warmth, with rectangular bags offering more room to move around but less heat retention.
Packing Techniques
The compressibility of a sleeping bag is an important consideration if you plan to carry it in a backpack. Down bags are generally more compressible than synthetic bags. Some synthetic materials, such as Primaloft Sport, are more compressible than others, like Polarguard. To save space, you can compress a sleeping bag into a stuff sack by stuffing it from the foot end, folding it, or rolling it, sometimes in combination with these techniques.
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Frequently asked questions
Compressing your sleeping bag into a stuff sack is a good way to save space. You can do this by laying the bag flat on the ground and crawling across it with your arms to press out the air. Then, fold it length-wise and crawl across it again. Finally, start at the top end and roll it up as tightly as you can. You can also try using a smaller stuff sack or a compression sack.
Make sure to stuff the bag from the foot/tail part first to prevent air from getting in. When stuffing the bag, stuff all sides simultaneously to avoid ballooning. You can also try folding the bag in half and crawling on it to remove the air, then compressing it into the stuff sack.
The better a sleeping bag fits, the warmer it will be. A properly fitting bag will be snug but not uncomfortable. To determine your preferred size, test out several sleeping bags of different dimensions. Most men’s sleeping bags have a shoulder girth of 60-64 inches, while women’s bags are usually slightly narrower.
If your feet are pushing against the end of the bag and compressing the insulation, then the bag is too short and will be less warm. It is recommended to opt for the shortest bag that fits to save weight. However, having extra room can be useful for storing clothes or footwear inside the bag.
A sleeping bag should be snug but not uncomfortable. If you feel too confined, consider a roomier bag. While roomier bags may be slightly less warm, getting a good night's sleep is more important than maximizing warmth.




























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