How to choose sleeping bag

We all know that the dream of human life is important. Complete rest is needed especially when we are in extreme or unusual situations for the organism. For example - hiking.

A sleeping bag is the basis for normal and full of sleep in these conditions. The choice of sleeping bags for today is very high, and price aspect is very wide. Consider this question in more detail.
What kind of sleeping bag to choose - everybody's business, but it's worth noting that the sleeping bag, blanket suitable for going to the cottage, and a cocoon - for the serious tourist campaign. The advantage of cocoons is that they have less weight and heat.
According to materials of construction for sleeping bags, they are divided into synthetic and natural.
As a natural material is pure cotton or cotton with some additions. This kind of sleeping easier to absorb moisture, the heavier and less wear-resistant. As for synthetic sleeping bags, they are easily erased, protected from wetting, more wear-resistant and lighter.
The first group included downy sleeping bags. Advantages of fluff known to us all, but it is worth noting that the main parameter of choice is not its quantity but its quality. Elasticity and the degree of cleaning down is an indication of its quality.
Exponent, which is responsible for the quality of down is Fill Power, and it should not be less than 600. Most are warm down sleeping bags, which weigh only 900-1200 g and quietly tolerate temperatures below 30 degrees Celsius. Unfortunately, the fluff has also disadvantages - loss of use of down products with high humidity.
With regard to synthetic fillers, they can be divided into two groups: hollow fiber and silicone sintepon.
We are better known sinteponovye sleeping. These sleeping cheapest, weigh up to 2300 g and withstand temperatures to -10 degrees Celsius. Very fast "caking" syntepon is its major drawback.
The result is that after a couple of years of exploitation of a sleeping bag will lose up to 20 percent of the thermal properties.
In recent years, sleeping with hollow silicone fillers are becoming more popular. The reason for the popularity is light weight, ability to keep the temperature at - 25 degrees Celsius, minimum moisture absorption and ease of washing.
The most quality and popular brands of fillers are Aerofiber from the firm Thinsulate and Dupont, Thermolite, Hollofil from the firm ZM.