How to Choose Size of Sleeping Bag

How to Choose Size of Sleeping Bag

November 1, 2016 Camping 0

Most sleeping bags are now available in 2 or 3 different sizes. What size to choose? Too narrow, it will be uncomfortable and too large, you may be cold …?

Let us therefore now on the ideal size of a sleeping bag . Most manufacturers offer sleeping bags of different sizes. We often see references “170cm, 180, 190cm, 200cm, 215cm, 230cm or Short, Regular, Long”. But what these values are? This is what we will try to describe in this article.

Why have a sleeping bag suitable for its size?

The further down in temperatures, the longer it takes a sleeping bag good quality, and the manufacturer’s expertise is accurate.

For very low temperatures, the sleeping bag as the tent becomes a real tool of comfort whether it is suitable, but an instrument of survival if badly chosen , with sometimes serious consequences (frostbite, hypothermia, etc. .).

Sleeping bag of the temperatures (comfort, comfort limit, survival), the choice of packing (feather or synthetic), the quality of the lining are important parameters to consider when starting bivouac.

The size is also another important criterion .
Here are some examples:

  • if we chose a sleeping bag a little too fair, it will tend to curl her legs (so less refreshing sleep). If we want to fully unfold, we may come to stop at the bottom of the bag , and thus compress the compartments of the feet or touching the wall of the tent with the foot of the sleeping bag. In this case, the sleeping bag no longer allows a sufficient insulation to the feet, with the attendant consequences: it has cold feet . This also applies to the hood of the sleeping bag, so for the head sometimes too cramped.
  • if we choose too large sleeping bag,besides the wearing of weight and additional volume for nothing, our bodies will have to produce more heat in order to heat the larger volume due to excessive sleeping bag. Same as in the previous case, results in a loss of heat and a night more or less white.
  • when choosing a sleeping bag adapted to its size,can be put in relaxed position , relaxed , and having enough space at the hood and in the feet not to compress the pen or synthetic compartments .Even for those who place small items into the bag (battery, cell phone, water bottle, camera, etc.), there is generally enough room we are between two sizes and that we have much material to put into the bag (ski slippers, mittens, thermos, gas cartridges, etc.), then we will go to the larger size.

The lengths of a sleeping bag

Some manufacturers report on the internal length of the sleeping bag (mostly) but rarer communicate on external lengths . While checking the advertised size.

For information, here is a summary table of internal correspondence sizes / outside a sleeping bag:

Length inside
of the sleeping bag
External length
of the sleeping bag
about 170cm about 200cm
185 / 190cm about 215cm
about 200cm about 230cm

If you are under 1.65m: Size S (short).

Not to mention sleeping bags dedicated to children, if we do less than 1.65m, are generally advised to go on sleeping bags in sizes indicated SHORT in 170cm inner length .

If you measure between 1.65m and 1.80m: Reg size (regular)

If we make between 1.65m and 1.80m, are generally advised to go on sleeping bags in sizes indicated REGULAR in 190cm inner length.

If you measure more than 1.80m: Size L (long)

If we over 1.80m, then we go on flannel sleeping bags in sizes indicated LONG in 200cm inner length.
Usually these sleeping bags lengths suitable for people measuring up to 1.95m.
For cold weather mountaineering in altitude trekking or expedition, more templates between 165cm and 180cm sizes choose Long to slide down jacket, slippers, gas cartridges, batteries at the bottom of the bag to keep warm.
For mild temperatures many hikers between 175cm and 180cm also choose sleeping bags Long but this time for comfort reasons to take advantage of more space.

What about the amount of packing?

Logically, at equal temperatures should be over packed into a 200cm model to a model 190cm. Indeed, it is generally the case, but think of check anyway!

Note: specificity sleeping bags SIR JOSEPH. The models “women” in 170cm have the same amount of padding that models “men” in 190cm for more heat . Having in perspective because, on average, there is a difference of 5 ° to 6 ° C in temperature felt between a man and a woman. So the same amount of denser packing used to fade the gap.

Our opinion Montania

“… Increasingly manufacturers offer the same sleeping bag in different sizes, adapted to the morphology of each one. And that’s a very good thing.

The state of fatigue, altitude, hydration, stress of the upcoming race, there are already enough criteria that will make you sleep more or less. So as not to add because of a sleeping bag not suited to our size!

Whether a bivouac tent hiking, on a ledge during a mountaineering race for a distant trek, better prioritize the comfort of a good night to attack like the next day ”

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