一、sleeping bags classification: 1, from the appearance point: A, envelope type: look and we normally use envelopes almost, just sealing by bending surface into a drawstring;
B, the Mummy: also called Mommy, see "fairy legend" will know what it is, to the best heat preservation effect;
C, mixed type: is the envelope in the head with a hat;
2, from the thermal insulation material filled into: A, cotton sleeping bags: This is usually widely used sleeping bag material, can be used for four seasons: spring, summer, autumn and winter. There is a hole hollow, four hole hole, seven hole hollow points, the normal service life of up to 10 years! Advantage is in the same scale, the price is much cheaper than a feather, but can be repeated washing, convenient maintenance. Drawback is heavy.
B, a fleece sleeping bag: can be used as a temperature above 15 degrees in summer sleeping bag use, also can be in cotton or down sleeping scale is not enough to increase the 5 degrees of the scale.
C, down sleeping bag: the advantage of small volume and light weight, the permeability is good, the disadvantage is the price expensive, and maintenance more trouble, the general life of only 3-5 years.
D, a mixed bag: it is said that was first proposed by the domestic "Tianshi" sleeping bag concept, using a cotton under body while the other down in three aspects, not used, do not know how to.
二、The correct use of sleeping bags:
Personally feel that in most cases are caused by incorrect use of the equipment, but also of course with a physical problem.
Outdoor can often see 1+1 is greater than 2, as I started 04 years from -5 degrees limit scale with the Cato four holes cotton sleeping bags as an example, the highest record in 05 year new year's day Beijing the Great Wall Simatai through camp in Beacon Tower ventilation anti -17 degrees, similarly also is used in 04 Christmas Taishan peak -15 of snow in the environment.
Many of my friends think sleep buy an appropriate scale on the line, in fact, outdoor equipment are supporting the use of, just like the computer DIY, with reasonable to achieve the best results, but in real life often see under the condition of low temperature with season three tent down sleeping bag with egg groove moisture-proof pad, not appropriate the equipment used is not suitable in the cold season of course.
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