The backpacking sleeping bag must adequately protect the backpacker from the elements. This is a more complicated issue to address and will be explored in more depth below.
In 1917 the zipper was perfected and, of course, these made for a great seal for the rectangular sleeping bags allowing a persons body heat to stay trapped longer therefore keeping them warmer on those cold winter nights. Basically the term sleeping bag essentially means a protective bag for someone to sleep in. and is basically two blankets that can be zipped together in cases where a bed is not available. There are a couple different shapes of bags outlined below.
Rectangular sleeping bags are the original and most common shape you'll see on the market. These are simple but effective designs and continue to dominate the market for recreational camping and slumber parties alike. While originally being just two blankets zipped together, over the years the technology has allowed manufacturers t fill them with synthetic material creating better heat retention than the old styles. Some are filled with synthetic fiber, wool, cotton or down however if you're allergic to down, this may not be an option for you. There are many debated as to which one keeps you warmer and it really just a matter of opinion. I personally don't think there is much of a noticeable difference between the fillings however synthetic fibers will not absorb water and will keep you warmer even if the bag is a bit wet. A wet down sleeping bag is very hard to dry out and is considered worse than having no sleeping bag at all. In cases where you're in a survival situation synthetic is definitely the choice you should go with. Wool tends to stay dry however it is much heavier and is harder to transport because of that extra weight. Synthetic will keep you warm however it tends to compress easier and the bottom of the bag will let cool air in because of this. Hanging them and changing the position when storing is the preferred method of many outdoor enthusiasts as this keeps them from forming dead spots where the fibers have been crushed and rendering them ineffective at keeping you warm on cold evenings.
Sleeping Bag Wednesday , April 04th , 2018 - 21:00:23 PM
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