Choosing a sleeping bag, not easy amid a plethora where it is easy to go astray.
There are several key criteria for making the choice best suited to your use:
- -The comfort temperature
- -The type of packing: down or synthetic?
- -The closure system
- -The shape: rectangular or sarcophagus?
- -The price
He must first ask the question: What will be my use?
For this, it should ask the following questions:
-Do I go to sleep in tents under the stars or in a shelter?
-To what geographical area? At what altitude?
-In humid or windy areas? The humidity and wind tend to accentuate the feeling of cold.
-Do I wear myself my equipment?
-Or simply: I am cautious?
1-The Comfort Temperature
3 temperatures are: comfort, comfort and extreme limits:
- Comfort temperature: It corresponds to the temperature at which the sleeper will comfortably insulated to spend the night in his sleeping bag.
- Temperature limit of comfort: temperature at which the sleeper is the limit of feeling cold.
- Extreme temperature: temperature at which the risk of hypothermia can lead to death is reached.
These temperatures indicated by the manufacturers comply with European standard EN 13537.
This is the comfort temperature which must refer to your choice.
Tip: You can make your sleeping bag 2 types of accessories to play on these indicative temperature levels:
- The doublet or cloth bag: according to the material of the used doublet, it can increase the temperature of comfort of your down several degrees.
- The outer bag waterproof with a membrane or simply coated nylon, it will make your bag + moisture-proof, very useful during the nights under the stars!
2-The Type of Packing
The synthetic sleeping bag:
A temperature equal comfort, there is often heavier than down, but also less expensive. By cons, it is more resistant to moisture. It will be shown instead if you stay in wetland or if you do not carry all your gear on your back in time.
The sleeping bag Down
The down will usually have better thermal performance than synthetic equal weight. It will also be more compressible and less bulky. As against it loses its insulating wet. The weight / heat ratio is optimal.
A privilege so if you carry your own equipment.
Things to know about the down:
– Filling goose down or duck. Proportion of down and feathers (eg 90/10 indicates 90% of the lining of down to 10% by feathers). In general, the more the down rate increases, the lining will be qualitative.
-Goose down has better thermal insulation than duck down, but is also more expensive.
-The Cuin: This measure indicates the swelling power of the down.
-The origin of down: the down from Europe is often much better than the duvets from Asia.
Hybrid Sleeping bags
According to SleepingBagsExpo, they are sleeping bags that combine a down lining with a synthetic lining. The filling is different in different areas of the body covered. They allow eg to combine insulation against soil moisture with the synthetic, thermal performance and a better weight / heat through the fluff that while synthetic bag.
These hybrid bags are, however, are not the most widespread in the market.
3- The Weight, Bulk
essential criteria to consider when starting in complete autonomy. As seen above, the down sleeping bag is the winner of these two criteria.
4-The Closure System
- Some sleeping bags are joinable.
If that is your wish to spend a more pleasant night, it will choose two bags, one with zip on the right and one with zip left, and same model.
- High seal on the body:
there is a tightening only by tanka around the hood or bag having a collar at shoulder level, providing a better seal in the cold in the upper body and above the shoulders that are considered cold areas. The collars are often present on the sleeping bags of low temperature comfort.
5- The Shape Of The Bag
The sarcophagus shape:
This is an anatomical shape conforming to the shape, tapering in the legs, which allows to minimize the air and improve the thermal insulation. The sarcophagus bags also have the advantage of taking months instead.
The rectangular shape:
They are generally more comfortable for the sleeper has no place in the feet, but thereby lose thermal protection due to air in the bag. A priority in mild conditions.
Last criterion but finally not least.
-Down is generally more expensive than the synthetic
-There are sleeping bags down today suited to limited budgets. Usually the down used will be of lower quality, but it will allow everyone access to a more efficient bag, while remaining lightweight and affordable. A priority for initial equipment or for occasional use.
-Finally, there is no mystery, if you go on extreme conditions, it will unfortunately pay the price. The quality of the sleeping bag is a matter of survival when sleeping by-30 °.
The council + expedition:
-Store your sleeping bag out of its compression bag, it will maintain the swelling properties of your sleeping bag down. A storage bag is usually provided with your purchase.
-Avoid friction, they break the son, so the seams separating the compartments.
-Wash your down regularly: in a dirty bag, smells and develop the down clumps ball. Tip: Put a tennis ball in the washing machine and the dryer to improve the rendering of the swelling.
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