The invention of the sleeping bag is through the idea of the climber, at first, just in order to reduce the climb the Great Wall when the equipment carried by weight, and maintain the sleeping bag dry, use waterproof nylon fabric made of sleeping bag to cover, can prevent the rain wet sleeping bags, but do not have the effect of permeability, body to sweat of gas pools in the bag instead of the main reasons of sleeping bags and wet! In recent years, the invention of waterproof breathable cloth can improve the air permeability, so nowadays the sleeping bag is made of waterproof breathable cloth, which improves the comfort of the use.
Who is suitable for sleeping bag?
Sleeping bag can provide two main functions. One is to keep the sleeping bag dry and let users sleep comfortably! The second is to be able to isolate the external environment and keep the temperature inside the bag 5 ~ 10 degrees higher than the outside. In a warm climate, you can even sleep in a sleeping bag without a sleeping bag! The lightness and convenience of sleeping bags are recognized by outdoor activists, but not everyone needs the equipment, and the equipment is not required for outdoor activities! After all, sleeping in the tent is still comfortable, even using a single tent! How do you know if you need a sleeping bag? The following are several directions for your reference:
Don't care how much space you sleep! There's a place to sleep!
Always travel alone in the wild for more than two days.
I want to minimize the weight of the equipment I carry.
Long distance bike camping overnight.
It will take at least two days to complete the long - distance climb.
If your situation meets any of the above criteria, you may consider placing sleeping bags in your equipment purchase list!
About the sleeping bag [account]
Sleeping bag full name is "bivouacsack", hereinafter referred to as the "bivysack" or "bivy," we have mentioned before the birth of the sleeping bag because of the needs of the climber and invention, initially set to design is the use of sleeping bags, USES is waterproof nylon fabric, can protect the sleeping bag is not wet by rain or fog, but this kind of airtight nylon fabric also blocked khan gas produced by the body, make the cumulative khan gas into a liquid by environmental temperature drop, to become the main factors of wet sleeping bags.
The progress of science and technology contributed to the emergence of waterproof breathable fabrics, thus improved the permeability of sleeping bags for a long time, sleeping bag manufacturers began to use waterproof breathable fabric as the main material of sleeping bags, suddenly filled with the whole market as waterproof breathable sleeping bag! But after the actual use of experience, waterproof breathable fabric didn't seem to need to use on the sleeping bag, some manufacturers began to change the design, the cloth of sleeping bags can be divided into two parts, the upper half of the air outside is still easy to contact use waterproof breathable fabric design, in order to achieve the effect of waterproof and breathable; However, the lower part is connected with the ground, and the nylon cloth with high water resistance and high abrasion resistance has the same effect as the floor cloth of the tent. Instead of reducing the breathability of the sleeping bag itself, it improves the durability. So when you go to the store to choose a sleeping bag, when you see a combination of two kinds of cloth, don't think that the manufacturer is cutting corners. This may be the latest design!
Some manufacturers have special designs to make it easier for users:
In the vicinity of the arm area, there will be more space, on the one hand, can let the arm more free activity, on the other hand can also put a few individual small things, for the convenience of sleeping.
The zipper design allows the user to adjust the ventilation in the sleeping bag.
Some sleeping bags can be attached with a sleeping pad to protect the sleeping bag from damage.