I have just gotten into hammock camping and am learning about all the new gear I want/need. One thing I am not sure I understand is what is the difference between a sleeping bag and a quilt? It can't just be that a bag has a zipper can it? My sleeping bag is relatively new and is working fine for my as a top cover. is there any real reason I should consider replacing it with a quilt or should I wait until the bag really needs replacing? What benefits will a quilt give me that a bag wont?
I know I am going to get an under quilt. Right now I am using an old blanket that I tied some line and loops to and that is working for now, but that will be the first real upgrade I make to what I have now. It is just the top quilt that has me confused.