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The hiker spends as much time in his bag on the roads, and this time, should be used to sleep and recover from the efforts of the day. It is, therefore, imperative that the sleeping bag fully plays its role, especially if the temperature is low or the weather is wet.

This file conforms to a set of questions to help you choose: an ultra-light sleeping bag for extreme temperatures, down or just comfortable?

You will need to pick your sleeping bag according to various criteria, such as whether you will sleep in tents or shelters, the thermal capability of the sleeping bag you need. Make the choice of sleeping bag or consider a bag synthetic sleeping, and ultimately leave with the best solutions regarding efficacy / lightness because you always end up having to carry things.

Sleeping bag and temperature

How the temperature of a sleeping bag measured is. The industry has set up a notion of comfort temperatures, and extreme limits.

The profession uses a system of measuring the heat capacity of sleeping bags meant to guide the customer when purchasing. This is the European standard EN 13537, which aims to objectively evaluate the actual performance of sleeping bags. Under this standard, the sleeping bag manufacturer must present four temperature values in your bag if you want to be CE compliant.

  • The maximum temperature is the highest temperature at which an adult man can sleep without excessively hot (to the point of sweating)
  • The comfort temperature: the temperature at which a woman will sleep comfortably.
  • The temperature limit: this is the lowest temperature at which an adult man can sleep without feeling cold.
  • The extreme temperature: below this temperature, survival is compromised for an adult woman

The choice of the sleeping bag shall in no case be on the values of extreme temperature because cold sensations, the risk of hypothermia are real below the limit temperature. Good measure temperatures will be between comforts and limits and is the values provided by manufacturers and stores.

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Hikers in sleeping bag

Millet XP500 is an ultra-light 450g bag for a hiker in use with its comfortable temperature between 5 ° C and 10 ° C

Mountain hiking trails, those are the busiest, are often dotted with huts or cottages that offer a bed. Most often, hikers take a sleeping bag super calibrated. This is rarely the case.

In summer, do not make the mistake of taking a too hot bag because it probably is not less than 10 ° C in the dorm. Unless you think sleeping in camp one or two nights of walking, a light sleeping bag enough, say announced for 10 ° C.

Outdoor sleeping bag

Outside the shelter where the temperature is very temperate, the sleeping bag will keep you warm at night. You will also have to consider various things that can affect the efficiency of the sleeping bag:

  • The outside temperature at night;
  • The quality of the tent if you have one;
  • Climate, dry or moist;
  • Quality floor mats;
  • A dress complement.

The European standard for measuring the temperature is a rather limited approach that does not take into account the actual conditions in hiking. If you have a good tent, i.e. which effectively protects against the wind, quality of a floor mat, you’re both in the tent, and you preheat the cabin before sleeping, you easily gain 3 or 4 degrees of heat on the performance of the bag.

By cons, if you sleep without a tent under a tarp, for example, the wind’s help, you can lower the temperature limit of 5 degrees easily.

You must also have in mind that the data on the thermal properties of a sleeping bag are laboratory values; in practice, sensitivity to hot and cold varies with people and can, in any case, be influenced by factors such as the level of fatigue, hunger, moral or level of general equipment.

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