Gina Johnson
Choosing the right sleeping bag for a thru-hike is essential for a safe and comfortable trip. The sleeping bag is perhaps the most important item in a thru-hiker's kit, and the right one will keep you warm and cosy after a long day on the trail. There are several factors to consider when choosing a sleeping bag, including temperature rating, weight, insulation type, and additional features. It is also important to consider the other components of your sleep system, such as your clothing and sleeping pad, which can affect how warm your sleeping bag keeps you.
| Characteristics | Values |
|---|---|
| Temperature rating | Choose a temperature rating that is a little bit lower than the typical low temperatures you expect to encounter. |
| Sleep system | Being comfortable at a particular temperature depends on variables such as the R-value of your sleeping pad and the clothes you plan to sleep in. |
| Type of insulation | Down vs synthetic. Down bags are loftier and suitable for longer trips, while synthetic bags are cheaper. |
| Weight | The quality of your insulation and the cut of your bag are the big factors. |
| Brands | Western Mountaineering, Feathered Friends, Montbell, Marmot, Mountain Hardware, GoLite, Zpacks, Kelty, Nemo, REI, RAB. |
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What You'll Learn
Sleeping bag temperature ratings
When choosing a sleeping bag, its temperature rating is a key factor. Sleeping bag temperature ratings are determined by standardised laboratory tests, which produce a rating range for each sleeping bag. The two temperature ratings within this range are the comfort rating and the lower limit rating. The comfort rating is the temperature at which a cold sleeper might feel comfortable. This is the rating used for women's bags. The lower limit rating, which is always lower than the comfort rating, is the temperature at which a warm sleeper might still feel comfortable. This is the rating used for men's bags.
It's important to note that temperature ratings are estimates, and the results of lab tests may differ from real-world use. Lab tests simulate how a sleeping bag is used, with a test dummy inside the bag dressed in base layers. However, they cannot account for variations such as differences in clothing and gear, body types, weather conditions, and other factors. Therefore, it is recommended to choose a bag with a temperature rating slightly lower than the coldest temperature you expect to encounter.
For thru-hiking, popular temperature ratings for sleeping bags include 20°F and 30°F. Some people may opt for a 10°F bag if they tend to sleep cold. It's worth noting that the comfort level of a sleeping bag can be adjusted by layering clothing and using a sleeping pad.
When choosing a sleeping bag, it is essential to consider the fit and whether you tend to sleep hot or cold. Additionally, it is recommended to choose reputable manufacturers that adhere to international standards, such as EN (European Norm) or ISO (International Standards Organization). These standards ensure that sleeping bags are tested consistently across different brands.
In summary, when selecting a sleeping bag for thru-hiking or any outdoor activity, it is crucial to consider the expected temperatures and choose a bag with an appropriate temperature rating. It is also important to consider your personal comfort and preferences, as well as the reputation of the manufacturer, to ensure a warm and comfortable night's sleep.
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Sleeping bag weight
When it comes to thru-hiking, the weight of your sleeping bag is a crucial consideration. Minimizing weight is a top priority for thru-hikers, but it's important to balance this with staying warm, especially in colder regions or during the later months of your hike.
The weight of your sleeping bag will largely depend on its temperature rating. As a general rule, the warmer the bag, the heavier and bigger it will be. This is because warmer sleeping bags have more down fill and require more shell fabric to contain it. For three-season sleeping bags, a target weight of around 3 lbs with a temperature rating of 20°F or EN Comfort 32°F is a good compromise. Bags with these temperature ratings typically weigh between 34 and 55 ounces.
If you're looking for an ultralight option, down insulation is the lightest insulator. Down-filled sleeping bags are more expensive, but they provide excellent warmth-to-weight ratios and compressibility. However, down bags may not perform as well in wet conditions unless properly protected. Synthetic bags, on the other hand, are a more affordable option and can insulate better when wet. They tend to be heavier and larger in size, but they are still a viable choice if you don't mind carrying a little extra weight.
Some popular options for lightweight sleeping bags include the Feathered Friends Tanager, weighing 18.6 ounces, and the Western Mountaineering NanoLite, weighing 11 ounces. The Riff by Nemo is another option, weighing 34.9 ounces for the medium size. If you're looking for a roomier and more affordable bag, the Disco (available for both men and women) is a good choice, although at 39 ounces, it is the heaviest down sleeping bag on this list.
Ultimately, the weight of your sleeping bag will depend on your specific needs and preferences. Consider the temperature range you plan to experience, the length of your hike, and your budget. Remember that you can also save weight by opting for a quilt instead of a traditional mummy bag, as quilts have more insulation on top of your body, which is where it matters most.
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$119.99
Sleeping bag fill
When choosing a sleeping bag for a thru-hike, you'll want to consider factors such as temperature ratings, weight, and packability. Sleeping bags with down insulation tend to be more expensive but offer better warmth-to-weight ratios and pack down much smaller than synthetic bags. Synthetic bags, on the other hand, are more affordable and will keep you warmer than down bags when wet.
If you're looking for a lightweight option, the Zpacks Classic Sleeping Bag is a popular choice among thru-hikers. It weighs just 1 pound 4.3 ounces and has a fill weight of 11.6 ounces. The Enlightened Equipment Revelation is another ultralight option that can be cinched up tight for cold nights or opened up like a blanket when it's warm. It has a fill weight of 16.1 ounces.
For a high-quality down bag, the Western Mountaineering UltraLite is a great option. It has a no-snag zipper, a 360-degree draft collar, and a full-length draft tube, providing excellent warmth-to-weight performance. It weighs 1 pound 13 ounces and has a fill weight of 16 ounces of 850-fill down. Another highly regarded bag is the Feathered Friends Hummingbird UL 20, which weighs 1 pound 9 ounces and features 900+ fill.
If you prefer synthetic insulation, the Marmot Trestles Elite Eco 20 is a good choice. It has some impressive features for its price point and is relatively light despite its recycled synthetic fill. The Kelty Cosmic Ultra 20 is another option with 800-fill down and a temperature rating of 20 degrees.
For side sleepers, the Feathered Friends Flicker UL 20 is a versatile hoodless bag that can be used as a full mummy bag or flipped open like a quilt in warmer weather. It has a drawstring foot box for added versatility and is insulated with 950+ fill power down.
In terms of quilts, the Katabatic Alsek 22 is a lightweight option with 900-fill down and a longer sewn footbox to trap heat. The Zenbivy Ultralight Bed is another integrated sleep system that combines a 900-fill power down quilt with an inflatable sleeping pad and a sheet for a draft-free experience.
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Sleeping bag shape
Sleeping bags come in various shapes, each with its own set of advantages and disadvantages. The three most common shapes are rectangular, semi-rectangular, and mummy.
Rectangular sleeping bags are the most traditional and well-known shape. They are long, rectangular, and sometimes bulky, providing plenty of room for legs and arms to stretch out. Some rectangular bags can be completely unzipped and used as blankets. Rectangular sleeping bags are ideal for campers who value comfort over warmth. They are a common choice for warm-weather camping because they do not retain as much heat as other shapes.
Semi-rectangular sleeping bags, also known as "modified mummy" or barrel shapes, offer a compromise between warmth and roominess. They are generally more slender than rectangular bags, with a rounded top and a slight taper at the bottom. Semi-rectangular bags are well-suited for cool-weather camping when conditions are chilly but not extremely cold. They provide extra shoulder room, making them a good option for side sleepers.
Mummy sleeping bags are designed to boost warmth and reduce weight. They have a slim cut and a contoured hood that can be cinched tight for added warmth. The overall fit is snug, and you typically roll over with the bag rather than inside it. Mummy bags are ideal for backpackers as they are lighter and more compact than other shapes. They are well-suited for cold-weather camping and can keep you warm in bitterly cold conditions.
Other less common sleeping bag shapes include double sleeping bags, which are designed for couples, and kid-sized sleeping bags, which come in various shapes and fun prints, patterns, and colours.
When choosing a sleeping bag shape, it is important to consider factors such as comfort, warmth, weight, and packability. If you prioritise comfort and roominess, a rectangular or semi-rectangular bag may be the best option. If warmth and weight are your main concerns, a mummy bag could be more suitable. It is also worth trying out different bags to find the shape and brand that feels most comfortable to you.
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Sleeping bag features
The sleeping bag is perhaps the most cherished item in a thru-hiker's kit. After a long day on the trail, a warm and comfortable sleeping bag is essential for a good night's rest. When choosing a sleeping bag for a thru-hike, there are several key features to consider:
Temperature Rating:
The temperature rating of a sleeping bag is crucial for a thru-hike as it ensures you stay warm during cold nights. Most thru-hikers opt for bags rated between 15 and 30 degrees Fahrenheit. If you tend to sleep cold, choose a bag rated to a lower temperature. As a rule of thumb, consider a bag rated at least 10 degrees lower than the lowest expected temperature on your hike. For example, if you're hiking in March in the Smoky Mountains or California's High Sierra in June, where temperatures can drop to the mid-teens, a higher-rated bag will be necessary.
Weight:
Minimizing weight is a priority for thru-hikers, as a lightweight bag is easier to carry over long distances. Look for bags that offer a good warmth-to-weight ratio, ensuring you stay warm without adding excessive weight. Ultra-light options are available, but they may come with a higher price tag.
Insulation:
The insulation of a sleeping bag is essential for retaining warmth. Down insulation is a popular choice for thru-hikers as it provides excellent warmth-to-weight performance. Look for bags with a high fill power, such as 800-fill or 950-plus-fill down, which offers superior insulation and loft. Synthetic insulation is also an option, but it tends to be heavier.
Design and Comfort:
Consider the design and comfort features of the sleeping bag. A bag with a slim design can save weight, but if you tend to move around while sleeping, a wider bag may be more comfortable. A deep hood and a snag-free zipper can also enhance comfort by providing a secure and unrestricted feeling. Additionally, look for features that prevent heat loss, such as draft collars and multiple shock cord cinches.
Durability:
Thru-hiking can be tough on gear, so choosing a durable sleeping bag is essential. Look for high-quality construction and materials that can withstand extended use and varying conditions. Check reviews and brand reputations to assess the durability of different options.
Water Resistance:
To keep your sleeping bag dry during wet weather, consider a bag with water-resistant insulation and a water-resistant shell fabric. Additionally, using a water-resistant compression sack or plastic bags to store your bag can help keep it dry during rain or condensation.
Remember, the key is to find a sleeping bag that meets your individual needs and the environmental conditions you'll encounter during your thru-hike. A good night's sleep is invaluable, so investing in a quality sleeping bag is worth considering.
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Frequently asked questions
The best sleeping bag for you depends on the season and your personal preferences. For example, if the average temperature is 30 degrees, an average sleeper may want to bring a 20-degree sleeping bag or the equivalent quilt-based system. If you are a cold sleeper, you may want to consider a 10-degree bag. If you are a warm sleeper, you may be able to get away with a 30-degree bag.
It is important to consider the weight of your sleeping bag, as you will be carrying it with you. You should also ensure that your sleeping bag is water-resistant or waterproof, as you will need to keep it dry. Other features that you may want to consider include types of adjustment features, stash pockets, and pad compatibility.
Some recommended sleeping bags for thru-hiking include the Zpacks 30-degree bag, Feathered Friends Tanager, Kelty Cosmic Ultra 20, and the Western Mountaineering UltraLite.
