Here is a distinction des 3 types of sleeping bag according to the form:
- Rectangular sleeping bags
- Sleeping bags oval
- Sleeping bags mummy
In addition there is information on the temperature range of material and other important criteria to consider when buying a sleeping bag.
Shape sleeping bag
Mummy type sleeping bags feather or synthetic fibers
The bridgat.com sleeping bags are best suited to low temperatures, as their form ensures optimal insulation. Thanks to its fit body shape, no additional material is needed to keep warm and is very handy when transporting. For properties are optimal sleeping bag, you need to choose the right size.
Rectangular sleeping bags of feathers or synthetic fibers
Rectangular sleeping bags are those that offer more space and are suitable for summer or average temperatures. They can be opened completely and have a rectangular court that allows also used as quilt.
Sleeping bags oval feathers or synthetic fibers
This type of bags is in a happy medium between the rectangular sacks and bags mummy type. Its oval cut offers space in the area of the knees and shoulders are narrower in the area of the foot and neck to maintain body temperature. Store in Campz these models are not in one category. As this type of bags combines features of the rectangular bags and sleeping bags mummy type, you will find models of sleeping bags oval in both categories.
Filling: feathers or synthetic fibers
Feather filling is the most comfortable. Maintain better than synthetic fibers bags temperature, so the temperature range in which can be used is larger. In addition, feather sleeping bags are lighter and smaller when they are packaged.
In sleeping bags goose feather or down can be used. Goose feathers are of higher quality and more expensive. Another feature to note about the filling is the proportion of the materials used by the manufacturer:
- Filling 90/10= 90% down, 10% feathers
(as light and warm – albeit with a high humidity level quickly cakes) It is necessary to use a mat. Since feathers are compressed under the body.
- Filling 80/20= 80% down, 20% feathers
(is somewhat heavier than filling 90/10 and less insulation but not as sensitive to moisture)
- Filling 70/30= 70% down, 30% feathers
(almost would be equivalent to a good sleeping bag synthetic fiber in weight and temperature. However, it offers comfort and resistance)
The advantages of synthetic fibers against the feathers are:
- Fast dry
- This means that less compression person has a thicker layer under the body, which in the case of feathers are more easily compressed.
- Synthetic fibers are cheaper than feathers (although it has a shorter shelf life)
In tropical areas, where moisture and microbes can affect the sacks of feathers, it would be advisable to use a sleeping bag synthetic fibers.
Exterior Material: Polyester and nylon
We lose sleep between 250g – 500g moisture tissue sleeping bag should convey to the outside. So that the tissue is sealed out should carry a calendering process (it comes with special rollers) Through this process the fabric is more consistent. The thicker the fabric is, the lower calendering, so is softer touch.
Most manufacturers of sleeping bags used as outer material:
- Nylon (lighter)
- Polyester (more comfortable)
- Microfibre fabric (good thermal insulation and repels water, heavier than nylon)
In 2005 the European standard EN 13537 was created to regulate the temperature range of sleeping bags, which must be applied by all manufacturers. Measurements made by manufacturers are made in different laboratories where different measurement techniques utilitzan. Thus, there are 3 steps that can be taken as a reference in accordance with:
- Comfort: A standard woman (25 years, 60 kg, 1.60 m) can sleep without freezing
- Limit: A standard man (25 years, 70 kg, 1.73 m) can sleep without freezing
- Extreme: A standard woman (25 years, 60 kg, 1.60 m) can sleep without getting cold. However, we believe that these values are debatable.
As equzhou guidance when choosing a sleeping bag, the most important is the comfort level.It should be noted at this point that a mat also contributes to the feeling of warmth in his sleeping bag. The thermal self-inflating mats are a good example of insulating mat. However, in sub-zero temperatures they have to take some precautions: The condensed water vapor in the mattress can be frozen, so that the insulating effect is lost. For these cases it is advisable to use classical insulation mats.
Also keep in mind that the same rules do not apply to infant sleep sacks. For infant sleep sacks there is no established rules.
Other buying criteria
Choosing the appropriate size sleeping bag
The fact that the sleeping bag has the proper size is critical, especially in cold environments. A sleeping bag too narrow to not provide freedom of movement may be the cause of increased cooling. The same applies to bags too big: The space available inside the sleeping bag should be filled with hot air, causing a loss of energy. In these cases you can put some clothes in areas that are empty, and in the footwell.
Hood and neck area
30% of body heat escapes through the head, so in cold areas it is important that the sleeping bag also has a hood that can be adjusted with a string. Thus heat loss is minimized and the body remains hotter. Some sleeping bags also have padding in the neck area to prevent heat from escaping from inside the sleeping bag out.
The hood and neck are common stuffing in sleeping bags mummy type and models of sleeping bags oval.
The quality sleeping bags have sealed zippers on the inside to avoid discomfort and to provide a higher level of insulation. It is common for right and left zipper has a protective strips to prevent snagging when opening or closing the zipper.
Some models of sleeping bag zipper have left and others right. In principle there is no rule on what is the best side. Each decides which side is more comfortable to your preference. Some tips when deciding:
- Right-handers often find it easier to have the zipper on the left side and vice versa.
- If you travel often with your partner, you may want to choose a sleeping bag with the zipper on the left and the other with the zipper on the right.If the sleeping bags are the same model can be coupled via two zips.
- If youplan to use the sleeping bag once in combination with a sack bivouac , we recommend choosing it with the zipper on the right side as most of these bags have zipper on this side.
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