Everyone knows what an important role to play in a person’s life dream. Especially good rest is needed in unusual or extreme conditions. This definition is quite suitable tourist trips, sports and even just the expedition leaving from the house with an overnight stay in the field. The basis for a comfortable sleep in these conditions is a sleeping bag, but now stores and businesses offer a diverse selection, that the eyes run and feel like to reach a certain harmony between the price and quality and choose a sleeping bag, which will serve more than one year, will be unpretentious care and most importantly – comfortable. 

In the sleeping bag no minor detail: important and material, of which he sew and cut, and a filler. For cover, there are several major modifications sleeping: 
Firstly, this sleeping-cocoons, which can not be arranged in a blanket, and 
secondly – sleeping bags, blankets, which can be placed in blankets. 

How to choose sleeping bag – the case of personal taste, however, that in order to exit at the unfinished summer house in a car more like a blanket, sleeping bag, but for the serious tourist hikes, climbs used cocoons. In the lower heat and weight. Some «extremists» use short sleeping bag to the waist, which is called «elephantiasis leg», and the top wear (or So) jacket. 

By sleeping bags are divided into natural and synthetic. 
Natural materials that are in sleeping bags, it is usually pure cotton or cotton combined with either. These sleeping bags heavier, easier to absorb moisture, less resistant to wear, and again it is more suitable for nedalnih travel by car because they are simply more aesthetically reminiscent of the bed, a soft, pleasant to the touch, not shurshat, as they are needed for people who suffer from allergies to synthetics. 

Synthetic sleeping bags easier, more protected from the wet, more resistant to wear and easier to wash, and they are more expensive sleeping bags using natural materials. 
Finally, the division of sleeping bags are fillers. 

The first group – this is down sleeping bags. Everyone is well aware of the dignity of fluff, like a heater, but the main parameter of choice is the quality of the fluff, and not its quantity. An indicator of the quality of down is its degree of purification and elasticity, the parameters Fill Power (volume in cubic inches, which is restored to the pre-compressed 1 ounce of fluff). Quality Fill Power is down from 600 or more. Also, it is necessary that it was necessarily down waterfowl, such as fluff is the natural lubricant that prevent absorption of moisture. Puchov sleeping bags are the warmest and almost the most light, while the weight of 900 to 1200g are comfortable at temperatures below -30 degrees, to the extent in such temperatures, in principle, can be comfortable. Alas, the fluff has its disadvantages. For example, the inability to use in high humidity, because in spite of the natural lubrication, despite the special impregnation, fluff perfectly absorbs moisture and dries very bad. Therefore, for winter trips to areas with moderate humidity down sleeping bag is perfect, but for other cases it is necessary to choose other fillers. 

Synthetic fillers can be divided into two main groups – it sintepon and silicone hollow fiber. 

Sinteponovye sleeping most known in our country. They are the cheapest, calculated at temperatures of -5, a maximum of -10 degrees, weighing from 1100 to 2300g and is most prevalent. In principle, for hikes on the Karelian Isthmus during the summer, for water trips, summer trips to the Kola peninsula to the garden and provide an ideal option, which is called cheap and angrily. The main disadvantage sintepona – fast «slezhivaemost», resulting in a few years sleeping bag will lose 20 percent of its thermal characteristics. 

All the pressure in the last time we (as in the West – exclusively) express yourself sleeping with the silicon inside the hollow fillers. They are light (from 900g), warm (down to -25 degrees), slightly blurred, very fast dry, absorb a minimal amount of moisture. These sleeping bags have virtually no weaknesses, except for relatively high prices, although prices are slowly declining with the advent of new, cheaper technologies. 

The most well-known and quality brands of fillers – this Hollofil, Thermolite, Aerofiber from the Dupont Company and Thinsulate from 3M Company. 

The principle of conservation of heat, these fillers are more or less the same: in the hollow «makaronine» contains air, which does not give you the warmth of your leave. These materials differ from each other in thickness, the thickness of the fibers and the number of internal holes in the fibers.