I am new to Hammock camping. I just spent 2 nights in the hammock this weekend and now i've got a couple of questions. It got down to about 40 degrees, but I still got a bit cold. I was using a light sleeping bag. Is a sleeping bag what I should be using? Looking at other posts perhaps an overquilt is what I need. Can someone please let me know if a sleeping bag is the way to go, or should it be used in tandem with something else, or should I ditch the sleeping bag and do something else. I don't plan on camping under 20 degrees. I appreciate the help!