How do outdoor newcomers pick a sleeping bag and sleeping mat that fits yours?
2021-06-06
A good night's sleep is a very important thing for ALICE. If the body can't get a full rest, it will be even harder and more tired in the next trip. In order to obtain a good sleep quality, in addition to choosing suitable camps, we must also use suitable sleep systems - Sleeping Bags and sleeping mats, so this article will briefly introduce the selection principles of sleeping bags and sleeping mats based on the needs of the climbers.
When choosing a Sleeping Bag, be sure to understand the following three decision factors:
Temperature rating: Determine the range of requirements based on the intended use of the environment.
Filler material: Understand the advantages and disadvantages of different materials.
The difference in appearance: The space design in the sleeping bag will affect the comfort, weight and volume, and warmth.
Temperature Rating First of all, when buying a sleeping bag, be sure to first confirm the temperature rating of the sleeping bag, which is the average sleeper can maintain the warm minimum temperature. According to their own climbing habits and needs to choose the right temperature level sleeping bags, such as buying summer, three quarters or winter sleeping bags. In terms of temperature levels, the test methods used by various manufacturers are slightly different, so they can only be used as a reference for purchase. At present, Europe has started to use standard laboratory testing methods - EN13537. Under the test environment, 25-year-old standard males and females were tested experimentally, and the applicable temperature range of sleeping bags was marked so that consumers could have a comparative Benchmarks. However, the actual use of the user may be different from the laboratory environment, so the first-hand experience is still more valuable than the manufacturer's temperature rating. In addition, if the humidity is relatively high, the body temperature will feel lower, so the comfort temperature displayed by the sleeping bag usually needs to be discounted!
Sleeping bag stuffing sleeping bags can provide warmth protection function by reducing the heat convection through the small air chamber formed by the stuffing to form a thermal insulation layer. The material of the filler directly affects the effect of warmth. Common materials include down and artificial fibers.
In general, down warmth, light weight, high compressibility, but the price is very expensive. The “Fill Power” of down is that one ounce of down feather can expand to a few cubic inches. Therefore, the higher the expansion coefficient, the more small air chambers formed by the expansion of down fibers. Of course, the warmth is also preserved. The better. However, it should be noted that the Down Sleeping Bag is afraid of moisture. Once it is absorbed, it will form a mass and lose its heat preservation capacity.
As for artificial synthetic fiber materials, the types are very diverse. Basically, they have a good warming ability, and they have a warm effect even when they are wet. However, they are disadvantageous in that they are larger in volume and weight than down feathers, and in dry conditions they are inferior to down materials in terms of warmth. . Of course, the price is very approachable.
The most common sleeping bag shapes for sleeping bags are enveloped bag type and mummy type.
The side of the envelope bag type sleeping bag will have an L-shaped zipper. The feature is that the same type of sleeping bag can be spliced into a double sleeping bag through a zipper connection. In addition, the space inside the sleeping bag is relatively large and it is easy to turn over. The disadvantage is that there is a lack of shoulder bags. Cover design, hot air easy to lose lead to poor warmth.
The mummy-type sleeping bag presents a close-fitting design with a narrow upper and lower body, which can completely cover the body and the head to prevent heat loss and achieve better warming effect. At the same time, this shape also eliminates the static air insulation space in the sleeping bag, and can also use less body heat to maintain the warmth in the sleeping bag. The smaller sleeping bag space makes the mummy-type sleeping bag better than the envelope-type sleeping bag in terms of volume and weight, but it also has the disadvantage of being difficult to turn over. To purchase a mummy-type sleeping bag, be sure to check the size and size of the sleeping bag and avoid excessive sleeping space or length.
When the sleeping mat is used, usually 30% of the warming layer is flattened by the user, so the sleeping bag at the bottom of the body will lose the effect of the warming layer. At this time, if there is no sleeping mat, the body heat will be directly transmitted to The ground causes heat loss. Therefore, the main function of the sleeping mat is to reduce the loss of conduction heat, and at the same time improve the comfort of sleep by increasing the cushion effect.
Common sleeping pad styles are closed-cell foam and inflatable sleeping mats. The advantages of closed-cell foam are cheap and reliable, effectively forming thermal resistance and reducing heat conduction without worrying about water seepage or holes. However, under long-term use, there will be flattened conditions, which will reduce the heat preservation capacity and comfort. At this time, it needs to be replaced. . Inflatable mattresses are large in thickness and are more comfortable to sleep than closed-cell foam mattresses, but may suffer from holes and air leaks due to friction. In addition, they are heavier than closed-cell foams.
When shopping for sleeping bags and sleeping mats, be sure to confirm your use. For multi-day outdoor activities, the combination of a mummy-type down sleeping bag with a closed-cell foam is a common style; if it is based on leisure camping, you can choose an envelope-style sleeping bag with an inflatable sleeping pad. Basically all products can not meet any scene, so before buying it must first confirm their needs, followed by understanding the differences in product design and its advantages and disadvantages, it will not spend money to buy the product but not applicable!
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