In 1917 the zipper was developed and, of course, these made for a terrific seal for the rectangular sleeping bags allowing an individuals body warmth to remain trapped longer consequently keeping them warmer on those cold winter season evenings. Basically the term resting bag essentially suggests a safety bag for someone to rest in.
Semi-Rectangular: I call this the cross. This backpacking bag is rectangle-shaped ahead and afterwards slenders along towards the feet. With this type, you obtain added space, but not as much weight as a true rectangular resting bag. For those who are claustrophobic, like me; we can reach sleep a little better inside a bag with added room in it and still have some benefit from the form.
Think about the time of year you will certainly be going and also whether or not the nights will certainly be chilly when you're heading off outdoor camping. Take into consideration whether you really feel warm or cold when you sleep. If you feel the cool, you might want to think of a camping mat to sleep on which will certainly protect you from the chilly night ground and also supply you with added warmth. It's much easier to unzip a sleeping bag and cool off if you are feeling warm, than it is to get rid of the cold.