Rectangular sleeping bags are the initial and also most typical form you'll see on the market. I directly don't think there is much of a visible difference in between the fillings nonetheless synthetic fibers will certainly not soak up water and will certainly keep you warmer also if the bag is a little bit wet. A damp down resting bag is very hard to dry out as well as is taken into consideration even worse than having no sleeping bag at all.
One more item you could acquire is a sleeping bag liner. These offer extra heat on cold evenings, as well as can likewise be gotten rid of and washed, conserving your sleeping bag from the regular damage.
If you are in the mountains and also only plan to trek Fall, summer and spring, after that obtain a 3 season resting bag. (Example: claim that the average reduced in the mountains throughout the spring is 20 levels Fahrenheit, after that take away 20 degrees and look for a sleeping bag that's ranked at 0 degrees. Draft Collar: This is a tube at the base of the hood. It "closes" off the area at the neck so that air doesn't get away. When experimenting with a bag, see to it that this tube is comfortable.