Colin Snow
When it comes to choosing a small sleeping bag, there are several factors to consider. Firstly, the type of insulation is important, with down being warmer, lighter, and more compressible than synthetic insulation. Synthetic insulation, however, is more affordable and retains some insulative power when wet. Temperature rating, bag shape, and additional features such as hoods, zippers, and stash pockets also play a role in the selection process. For those seeking an ultralight sleeping bag, weight and packability become crucial factors, with some bags utilising ultralight fabrics and smaller zippers to reduce weight. Quilts offer an alternative to traditional sleeping bags, providing warmth and comfort while eliminating the weight of a zipper. Ultimately, the best small sleeping bag will depend on individual needs, budget, and specific features desired.
| Characteristics | Values |
|---|---|
| Temperature Rating | The temperature rating of a sleeping bag is a function of the amount of loft, which is determined by the volume of the baffles and their construction. |
| Insulation Type | Synthetic insulation is more affordable, dries faster, and provides warmth when damp. Down insulation is lightweight, durable, and compresses to a smaller size. |
| Bag Shape | The four main shapes are rectangular, semirectangular, mummy, and double. Mummy bags are more thermally efficient. |
| Size | Sleeping bags come in regular, long, and short sizes. |
| Weight | Weight can be saved by removing fabric or insulation on the underside of the bag, removing zippers, and avoiding a hood. |
| Water Repellency | Some sleeping bags use a DWR (durable water repellent) treatment on their outer shell or a naturally water-resistant fabric such as Pertex Quantum. |
| Packability | Smaller sleeping bags are easier to carry and are critical for outdoor sports like bike touring or bikepacking. |
| Features | Additional features include draft-blocking details, a snug-fitting hood, extra zippers, and a stash pocket. |
| Brands | Recommended brands include Feathered Friends, Marmot, Kelty, Patagonia, Neutrino, Exped, and Sea to Summit. |
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What You'll Learn
Insulation type: Down vs synthetic
When choosing a small sleeping bag, one of the most important decisions you'll have to make is whether to go for down or synthetic insulation. Both types have their pros and cons, so it's important to consider which one will best suit your needs.
Down insulation is made from the soft, fluffy plumage found underneath the exterior feathers on waterfowl, such as ducks and geese. It is known for being lightweight, durable, and highly compressible, making it a popular choice for ultralight sleeping bags. Higher-fill-power down also means that less down is needed to fill the bag, resulting in a lighter product. However, one of the main drawbacks of down is its performance in wet conditions. Down tends to clump up and lose its loft when it gets wet, causing it to lose its insulation properties. While treatments have been developed to improve the water resistance of down, it will still get wet if submerged in water or exposed to heavy rain.
Synthetic insulation, on the other hand, is typically made from polyester fibres. It offers several advantages, including affordability, quick-drying capabilities, and the ability to retain insulation when wet. Synthetic insulation is also hypoallergenic and durable. However, synthetic insulation generally cannot offer the same warmth-to-weight ratio as down, and it doesn't pack down as small. Synthetic insulation can also vary in quality, with short-staple insulation being less durable and more prone to creating cold spots compared to continuous-filament insulation.
In some cases, manufacturers combine water-resistant down and synthetic insulation to create a hybrid construction that maximises the benefits of both materials. This can involve blending the insulations together or using different insulations in specific locations, such as durable synthetic on the bottom of the sleeping bag and lofty down on top.
When deciding between down and synthetic insulation, consider factors such as weight, compressibility, warmth, water resistance, durability, and price. Both options can provide a comfortable sleeping experience, but the best choice for you will depend on your specific needs and preferences.
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Shape: Mummy, rectangular, semirectangular, or double
The shape of a sleeping bag is an important factor to consider when looking for the best small sleeping bag. The four main shapes are rectangular, semirectangular, mummy, and double.
Rectangular sleeping bags have the same width from head to toe, providing more space and comfort. They are a good option for those who prefer to move around while sleeping. However, their bulky size can be a drawback for backpackers or hikers who need to save space.
Semirectangular bags offer a good middle ground between mummy and rectangular bags. They provide more room to move around, making them suitable for those who prefer a less restrictive sleeping experience.
Mummy bags are tapered, which helps retain heat more efficiently as there is less empty space to warm up. They are also more lightweight and packable, making them ideal for cold-weather camping, backpacking, and hiking. However, some people may find the snug fit restrictive, especially if they prefer to sleep with additional layers.
Double bags are larger combined sleeping bags that offer extra space for those who have the storage capacity and want to share their sleeping space.
Ultimately, the decision between these shapes depends on your personal preference, camping needs, and space considerations. Mummy bags are ideal for cold-weather activities and space-saving, while rectangular and semirectangular bags offer more room to move around but are bulkier. Double bags are perfect for those seeking a spacious option without weight and size constraints.
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Temperature rating: Choose a bag with a rating below the lowest expected temperature
When selecting a sleeping bag, the temperature rating is of utmost importance. Sleeping bag temperature ratings typically follow a standardised numbering system that helps buyers understand the expected temperature range in which a sleeping bag is suitable for use. The EN (European Norm) system, which provides a standardised set of tests for sleeping bags across the industry, breaks down sleeping bag temperature ratings into three values: comfort rating, lower limit rating, and extreme rating.
The comfort rating indicates the lowest temperature at which a standard woman can sleep comfortably in the sleeping bag. In general, a sleeping bag with a comfort rating of 32°F (0°C) or above is suitable for summer camping, while a rating of 20°F (-7°C) or lower is suitable for winter camping. The lower limit rating, which is always lower than the comfort rating, indicates the lowest temperature at which a warm sleeper might still feel comfortable. This is the temperature rating used for men's bags. A sleeping bag with a lower limit rating of 20°F (-7°C) or above is suitable for summer camping, while a rating of 0°F (-18°C) or lower is suitable for winter camping.
The extreme rating indicates the lowest temperature at which a standard woman can survive in the sleeping bag without risking hypothermia. While it is not recommended to sleep in a sleeping bag at this temperature for an extended period, it serves as a reference point for emergency situations. It's important to note that these ratings are based on assumptions about the sleeper, such as height and weight, and the environment, such as wind chill and humidity.
When choosing a sleeping bag, it is generally recommended to select one with a rating slightly below the lowest expected temperature. This allows for flexibility in layering up with clothing or additional insulation, such as thermal base layers or a sleeping bag liner, to suit changing conditions. Layering provides an extra level of warmth and ensures optimal comfort regardless of the weather.
Additionally, consider your personal sleeping habits and preferences. If you tend to sleep cold, focus on the comfort rating, while if you sleep warm, the limit rating may be sufficient. The extreme rating is a survival metric and not a measure of comfort. Other features like draft-blocking details, a snug-fitting hood, extra zippers, and a stash pocket can also enhance durability, warmth, and functionality.
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Size: Regular, long, or short
Sleeping bags typically come in three sizes: regular, long, and short. The best size for you will depend on your height, your sleeping style, and your personal preference for space.
Regular sleeping bags are designed for people up to 6 feet tall. If you are over 6 feet, a long bag will likely be a better option. However, if you are a side sleeper who curls up while sleeping, a regular bag may still work for you.
Long sleeping bags are ideal for taller individuals. If you are planning to use your sleeping bag in cooler temperatures, a long bag will also allow you to pull it over your head for extra warmth. Additionally, if you feel confined in tight spaces, a longer bag can provide more room for comfort.
Short sleeping bags are typically designed for children. However, if you are an adult with a small frame, a short bag may be suitable.
It is important to consider not only the length of the sleeping bag but also its girth. The girth refers to the circumference of the bag across the shoulders and hips. A proper fit will allow the bag to wrap around you snugly without being too tight or uncomfortable. Trying out different bags and testing various dimensions is the best way to find your preferred girth.
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Features: Waterproof shell, hood, zippers, stash pockets
When looking for a small sleeping bag, it's important to consider its features, such as its waterproof capabilities, hood design, zipper quality, and stash pockets.
Firstly, let's talk about the waterproof shell. While some sleeping bags are made with completely waterproof fabrics, others have a water-resistant coating that prevents the insulation from soaking through. For example, the Feathered Friends Egret features a Schoeller NanoSphere 20 nylon shell, which is highly durable and waterproof. Similarly, the Therm-a-Rest Honcho Poncho is made of rip-stop polyester fabric, which is both water-resistant and breathable.
Now, let's discuss the hood. A good sleeping bag should have a hood that fits snugly around your face, keeping your head warm and comfortable. The Teton sleeping bag stands out with its generous hood size, allowing plenty of room for a pillow. Additionally, the Teton hood cinches effectively around the face, ensuring warmth.
Next, let's focus on the zippers. Smooth and snag-free zippers are essential for a seamless experience. The Feathered Friends bags feature zipper plows and a strip of firmer fabric near the zipper to prevent sagging. The Teton sleeping bag also excels in this area with its two half-length zippers, making it easy to get in and out of the bag and providing temperature regulation options.
Finally, stash pockets are a valuable feature. Internal stash pockets are ideal for keeping essential items, such as phones, safe from freezing temperatures. The Teton, Kelty Tru.Comfort 20 Doublewide, and Marmot Trestles Elite Eco 20 all include stash pockets, enhancing their functionality and making them excellent choices for your small sleeping bag needs.
In conclusion, when selecting a small sleeping bag, pay close attention to these key features: a waterproof shell, a well-fitting hood, smooth and snag-free zippers, and useful stash pockets. By considering these aspects, you can make an informed decision and choose a sleeping bag that suits your specific needs and preferences.
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Frequently asked questions
The Kelty Cosmic sleeping bag is a great budget option that packs down smaller than other models. It is also roomy and comfortable for those who toss and turn.
The Feathered Friends Flicker 40 UL is the most versatile ultralight sleeping bag we tested. It can be worn with your feet out and the zipper done up, making it a good option for chilly mornings.
The Revelation 20 is one of the warmest sleeping bags we tested. On a mild summer night, there was no need to fasten it up underneath.
The Exped Ultra 0° is a lightweight sleeping bag that comes in five variations, including small, medium wide, and large wide. It is made with premium 850-fill goose down insulation and a mummy shape.
