The trouble is that when I went to look for my "ideal bag" there was so many choices I really did not know which bag would certainly function best for me. One is the mommy bag and also the various other is the "old school" rectangular sleeping bag. The rectangular sleeping bag isn't as tiny however given that it's not regular to be carrying it, other compared to somewhere in a car while obtaining to your designated destination, the thickness of the bag is not as big an issue.
If you see a +20 degree score that would certainly indicate that the bag should be cozy enough for temperatures that are 20 levels or warmer.. And if you see a - 20 level score then it has actually been figured out that the bag needs to be cozy sufficient for minus 20 degree climate.
The shape of the real resting bag is to personal preference. The general selections are the normal rectangular form, the conical form, or the mommy bag. Some individuals might not such as the feel of sleeping in a regular rectangular shaped bag, favoring the closeness of a tapered one, whereas others may really feel too claustrophobic.