Gina Johnson
Sleeping bags are an essential part of camping gear, and choosing the right one can be a daunting task. The type of sleeping bag you need depends on various factors, such as the purpose of your trip, the climate, and your sleeping style. Understanding the different ratings, materials, shapes, and features of sleeping bags can help you make an informed decision. Whether you're car camping or backpacking, selecting a sleeping bag that offers both comfort and thermal efficiency is crucial for a good night's sleep in the great outdoors.
| Characteristics | Values |
|---|---|
| Temperature ratings | Choose a bag with a comfort rating matching or exceeding the temperatures you'll be sleeping in. |
| Shape | Mummy bags are snug and lightweight, ideal for backpacking. Camping bags are roomier, rectangular, and heavier. Semirectangular bags offer a compromise between warmth and roominess. |
| Weight | Backpacking bags should be lightweight and packable. Down filling is lighter than synthetic filling. |
| Size | Ensure the bag is wide and long enough for you. Mummy bags can be sewn wider to accommodate different sleeping styles. |
| Insulation | Baffles act as internal "walls" to prevent insulation from migrating. Vertical baffles create the highest warmth-to-weight ratio and allow for temperature adjustments. Horizontal baffles are more expensive. |
| Storage | Sleeping bags should ideally be stored by hanging. |
| Brands | Recommended brands include Rab, Nemo, Alps OutdoorZ, Western Mountaineering, Coleman, Mountain Hardwear, Feathered Friends, and REI. |
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What You'll Learn
Temperature ratings
If you often camp at higher elevations or in cooler climates, you'll want a bag with a lower temperature rating to keep you warm. For example, the Western Mountaineering MegaLite is designed for "high-alpine routes where I'll face cold nights". The Feathered Friends Flicker 40 UL is rated for temperatures as low as 40°F, and is also available in 20 and 30-degree versions. On the other hand, if you only camp a few times a year, you may be able to get by with a budget bag like the Coleman Brazos or the Mountain Hardwear Bishop Pass 15.
It's worth noting that temperature ratings are based on an "average sleeper" and there are many other factors that will affect how warm or cold you feel when using the bag. These include your sleeping pad, clothing, humidity and wind, and your metabolism. For this reason, it's generally recommended to pick a sleeping bag with a lower temperature rating than the lowest nighttime temperature you expect where you plan to camp.
The shape of the sleeping bag will also affect its temperature rating. Mummy bags are designed to boost warmth and cut weight by fitting snugly around your body, while camping bags tend to offer more room to move around in. A semi-rectangular bag offers a compromise between warmth and roominess.
Finally, the type of insulation will also impact the temperature rating of a sleeping bag. Down insulation generally provides a better weight-to-warmth-to-pack-size ratio than synthetic insulation, but it is more expensive and requires more careful maintenance.
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Insulation types
Sleeping bags come in a variety of shapes and sizes, but one of the most important considerations when choosing one is the type of insulation. The two most common types of insulation are down and synthetic.
Down insulation is made from the soft feathers found beneath the exterior feathers of ducks and geese. It is a superior insulator, providing more warmth with less weight, and it is highly compressible, resulting in a smaller packed size. Down sleeping bags are ideal for backpacking or camping in cold weather, as they provide maximum warmth with minimal bulk. However, down insulation has some drawbacks. It is generally more expensive than synthetic insulation, and it requires careful handling as it can be damaged by moisture and body oils.
Synthetic insulation, on the other hand, is made from man-made materials such as polyester or nylon. Synthetic sleeping bags are typically more affordable and easier to care for than down bags. They dry quickly, making them a good choice for wet weather camping. Synthetic insulation also retains its insulating properties even when wet, and it is non-allergenic, making it a good option for those with allergies or sensitive skin. However, synthetic bags are usually heavier and bulkier than down bags, and they may not provide the same level of warmth in extremely cold conditions.
Another factor to consider when choosing a sleeping bag is the type of baffles. Baffles are the internal "walls" that prevent the insulation from migrating and create a higher warmth-to-weight ratio. Vertical baffles run lengthwise from the bag's head to toe, making it easy to construct comfortable hoods and toe boxes. They also allow for the adjustment of the bag's temperature rating by moving the insulation between the top and bottom of the bag. Horizontal baffles, on the other hand, are more challenging to sew and therefore more expensive. They create a more uniform distribution of insulation, which can be beneficial for certain sleeping positions or in colder temperatures.
Ultimately, the type of insulation that is best for you will depend on your specific needs and preferences. If you prioritize warmth, lightweight, and compressibility, a down sleeping bag may be the best choice. If you are looking for a more affordable, low-maintenance option that dries quickly and performs well in wet conditions, a synthetic sleeping bag may be more suitable. Additionally, consider the type of baffles that will provide the most comfort and versatility for your camping or backpacking trips.
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Bag shapes
The shape of a sleeping bag is an important factor to consider when buying one. The most suitable shape for you will depend on factors such as your sleeping style, the temperature of your camping location, and the type of camping you plan to do.
Mummy bags are designed to boost warmth and cut weight. They have a snug fit, and you roll over with the bag rather than inside it. Some mummy bags are now sewn wider to give additional room to roll around. Mummy bags are a good option for backpackers as they tend to be lighter and more compact.
Semi-rectangular bags, also known as "modified mummy" or "barrel" bags, come in a variety of shapes that offer a compromise between warmth and roominess. They are a good option if you want more leg room or don't want to sleep on your back.
Rectangular bags provide ample room to stretch out and roll over. They are a good choice for car camping as you don't need to worry about weight or packing your bag in a small space. Rectangular bags can also be zipped together to form a double sleeping bag for couples.
The quilt is another option that functions as a hoodless mummy bag or an open quilt. It is lightweight and offers plenty of ventilation for warm summer nights.
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Storage
When storing your sleeping bag, it is recommended to hang it up rather than keeping it packed away in a stuff sack. Hanging your bag will help it maintain its loft, which is essential for keeping you warm. If you don't have the space to hang your bag, try to store it in a large bin or pillowcase, or at the very least, make sure it is fully dried out before packing it away.
It is also important to consider the location of storage. Sleeping bags should be stored in a cool, dry place, away from direct sunlight and moisture. Attics and basements may not be ideal as the temperature extremes and moisture can damage the bag.
If you are storing your bag for a long period, it is a good idea to take it out and air it every few months. This will help prevent any odd smells and keep the bag fresh.
Additionally, it is worth considering the bag's insulation when storing. Down insulation is more susceptible to clumping and can be affected by moisture, so it may require more careful storage. Synthetic insulation, on the other hand, is more durable and moisture-resistant, so it may be easier to maintain.
Finally, it is recommended to store your bag uncompressed. Compressing your bag for long periods can damage the insulation, reducing its effectiveness and lifespan. If you must compress the bag, try to minimise the amount of time it stays compressed.
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Weight
The weight of a sleeping bag is an important factor to consider when purchasing one. The weight of the bag will depend on the type of trip you are going on and how you will be carrying your gear. If you are car camping, weight is less of a concern and you can opt for a heavier, warmer, and more spacious bag. On the other hand, if you are backpacking or hiking, weight becomes a crucial factor as you will be carrying your gear on your back. In this case, you should prioritize a lightweight sleeping bag that is easy to pack and carry.
The weight of a sleeping bag is also related to its warmth and insulation. Down filling provides a better weight-to-warmth-to-pack size ratio compared to synthetic filling. However, down requires more careful maintenance. Baffles, which act as internal walls to prevent insulation from migrating, also impact the weight of a sleeping bag. Vertical baffles create the highest warmth-to-weight ratio, making them ideal for three-season and winter bags. Horizontal baffles, while providing more warmth, are trickier to sew and thus contribute to a heavier bag.
When considering weight, it is essential to balance it with comfort and thermal efficiency. A snug-fitting bag will provide better thermal efficiency by sealing out drafts and reducing the amount of air space your body needs to heat up. However, an overly snug fit can be uncomfortable, especially for side sleepers. Mummy bags are designed to be snug to retain warmth and reduce weight, but some newer models offer additional room to roll around. Semirectangular or "modified mummy" bags provide a compromise between warmth and roominess.
Some lightweight sleeping bag options include the Western Mountaineering MegaLite, the Mountain Hardwear Bishop Pass 15, and the Feathered Friends Flicker 40 UL. The MegaLite, weighing just 1.5 pounds, offers an impressive warmth-to-weight ratio and is perfect for diehard backpackers and high-alpine routes. The Mountain Hardwear Bishop Pass 15 is a lightweight, down-filled option for backpacking trips. The Feathered Friends Flicker 40 UL is an ultra-lightweight quilt that functions as a hoodless mummy bag or an open quilt, making it versatile for different temperature ranges.
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Frequently asked questions
Mummy bags are snug and help retain warmth and cut weight, while camping bags are roomier. Semirectangular bags are a compromise between warmth and roominess, and double sleeping bags are for couples.
Consider the temperature ratings, insulation types, and bag shapes. If you're backpacking, go for a lightweight option. If you're camping, you can opt for a warmer and roomier bag.
Sleeping bags should ideally be stored hanging. If you don't have the space, you can hang it from the back of a door.
The Western Mountaineering MegaLite is a premium option for backpackers. The Feathered Friends Flicker 40 UL is a lightweight option for thru-hikers. For car camping, the Alps OutdoorZ Redwood is a rugged and comfortable choice.
