Sleeping bags are essential equipment for outdoor camping and travel. The main function of sleeping bags in camping is to keep warm. The most important indicator of sleeping bags is the temperature scale, also called comfort temperature. Comfortable low temperature means that most people feel comfortable using the sleeping bag when the outside temperature drops to a certain temperature, and if the temperature drops further, it will feel cold. It should be noted that comfortable low temperature is only a relative concept. Sleeping bag products do not have industry associations, there are no industry standards, there are no domestic ones, and foreign ones do not. Some big brands and research institutions calibrate their products based on laboratory tests and field experience. Comfortable low temperature. This temperature only has reference value. He will vary from person to person and from environment to environment.

Five steps to choose sleeping bags

The first step: Choose a sleeping bag based on your travel plan

In general, a sleeping bag is the largest device in your luggage. Therefore, the comfort of the sleeping bag is important, but you should first carefully consider the size and compressibility of the sleeping bag. For this purpose, you can consider the following aspects:

1. How are you going to travel in the area?

2. What season do you usually visit?

3. What are the weather conditions you may face?

In the above three steps, if you are inclined to choose a down sleeping bag, we will provide you with some references: (For a specific explanation, see later.) For example: If you estimate the weather is extremely bad (for example), you can use padding goose down, filling the amount of 2000 More than grams, containing 90% of the cashmere, a sleeping bag designed to cut off the collar. For another example, you will climb 6,000 meters of high mountains in the summer. Estimate the temperature at camping is about -15 degrees, you can use 1200G plush, 80% of the amount of sleeping bags. Of course, the above suggestions are only general reference. In fact, each person has different requirements for sleeping bags even under the same conditions due to reasons such as metabolic efficiency of the body, sleeping conditions, and even pre-bed eating conditions.

Step 2: Choose warmth (comfort)

The so-called warmth or comfort refers to the kind of temperature that this sleeping bag can maintain your sleep comfort. This indicator generally consists of three data, one minimum temperature: the lowest temperature limit used by the sleeping bag. Below this temperature is dangerous for the user. There is also an intermediate temperature; it refers to the ideal temperature for the sleeping bag to use the most comfortable. The maximum temperature refers to the upper limit of the temperature range, above which the user will be too hot to tolerate. When choosing this indicator, you can refer to the following steps:

1. Estimate the temperature at which you will camp. Although this value varies depending on the season and the climate, most of the time, the general travel enthusiast sleeps at minus 7 degrees Celsius to 7 degrees Celsius.

2. Adjust the above estimated temperature according to your personal preferences and the specific situation you may face.

3. According to the adjusted temperature value, select the sleeping bag with reference to the manufacturer's warmth (comfort level). It should be noted that since the standards of various manufacturers are not uniform, the values ​​provided by manufacturers are only a reference and not absolutely applicable under any circumstances.

Moreover, in general, imported sleeping bags are less suitable for Asians in terms of warmness, because Europeans and Americans are more resistant to cold than Asians, so pay special attention to your choice. Of course, there is no such problem with domestically designed sleeping bags that have been specially designed for the Chinese market. Attachment: When you choose the sleeping bag according to the temperature, it is better to take the low temperature as the standard. This is because it is much easier to open the sleeping bag zipper properly than to warm up after getting frozen in the middle of the night.

The third step: consider the material of the insulation layer

Which material is used for the insulation layer of the sleeping bag, to a large extent, determines the weight, volume, compressibility, and durability of the sleeping bag. Nowadays, there are mainly two types of materials used for the sleeping compartment temperature barrier:

Natural materials (mostly down)

The quality of this material is generally (gray, white) goose down or duck down (in general, goose down is better than duck down), and its performance depends on the type of down used and the degree of canopy. In fact, down is still the best sleeping bag insulation material so far.

Advantages: The lightest, the best insulation effect, can be the maximum compression, the most durable.

Disadvantages: Because this material is not only easy to absorb moisture, but also very difficult to dry once damp, so the sleeping bag made of this material is not suitable for use in a humid environment. Moreover, such sleeping bags are also more expensive.

Synthetic materials

In recent years, synthetic sleeping bag insulation materials have emerged endlessly. Many advanced synthetic materials are widely used in the insulation layer of sleeping bags. Most of these materials are hollow synthetic fibers, which are much better in terms of quality and heat preservation than ordinary chemical fiber cotton. However, it should be noted that although many man-made fiber manufacturers have announced that their materials are superior in performance to down, they are not.

Advantages: In a wet environment, although nothing is better than nothing, the insulation effect is better than that of a damp down sleeping bag. Moreover, even after dampness, the sleeping bag is easier to dry. Its price is also lower than down sleeping bags.

Disadvantages: The sleeping bag made of synthetic material is worse than the goose down sleeping bag in the cold and dry environment, and its durability is also slightly inferior.

Step 4: Select the shape of the sleeping bag

The shape of the sleeping bag is directly related to the warmth of the sleeping bag, the comfort of sleeping and the size of your luggage. The common shapes of sleeping bags are the following:

Mummies

This is a tight sleeping bag designed to save the weight of sleeping bags and get better insulation. As the name suggests, the shape of this sleeping bag is: it is narrower at the feet and then widens upwards to the shoulders. Finally, there is a tightly spaced headband above the shoulders. A suitable head pocket should be tightened to prevent cold air blowing. Moreover, taking into account that people are most likely to feel cold when sleeping, some mummy-shaped sleeping bags are particularly thick in the lower part, and some models are also designed with thicker feet.

Advantages: Its slender, compact shape not only improves the thermal efficiency of the sleeping bag, but also saves luggage space, especially the head pocket can prevent a large amount of heat loss.

Disadvantages: Its relatively compact shape necessarily makes some people feel uncomfortable while sleeping.

Semi-rectangular

This sleeping bag saves both size and weight while taking into account sleep comfort requirements. Most of these sleeping bags have a head pocket. In order to obtain a good insulation effect for teaching, its shape is generally relatively compact.

Advantages: On the basis that the insulation effect is still better, it can provide more space for activities and thus improve sleep comfort to a certain extent.

Disadvantages: Because there is more air to be heated, the warmth of this sleeping bag is less effective than a mummy-shaped sleeping bag. Moreover, since it is not designed to ensure the comfort of sleep, some people may still feel that the sleeping bag is not spacious enough.

Rectangular or envelope

Most of these sleeping bags are used for camping in warm conditions. This is because the original intention of this kind of sleeping bag design is to satisfy people's requirements for camping comfort in the wild, and as a result, more heat loss is unavoidable. This type of sleeping bag can generally be used as a mat by pulling the zipper off. This type of sleeping bag does not generally have a dedicated head pocket.

Advantages: Its rectangular shape makes it more comfortable when you sleep.

Disadvantages: not only is it generally warm, but for most people it may be too bulky and heavy.

Step 5: Choose the right sleeping bag length

Sleeping bags are generally of two lengths: "regular" for heights below 1.80M and "long" for heights below 1.95M. In addition, some sleeping bags manufacturers can also provide "extra-long" sleeping bags, sleeping bags designed specifically for women, and sleeping bags designed for children. In general, for Asians, most of the "standard" length sleeping bags are used.

In short, there are many types of sleeping bags, but just like choosing other outdoor sports equipment, it is not the most expensive or the best. Only those who can meet your needs properly can match your outdoor sports. s Choice.

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