So I have been contemplating making my own underquilt out of an old sleeping bag or two( lafuma or a north face). I have never used a u.q. or seen one but would like to eliminate my cold spots and loose the pad. Here were some questions I had.... Is there a special thread I should use to sew with? Will I need to sew some kind of a ribbon around the edges to keep it sealed and if so what would you suggest? Refilling excess down? Also is it better to have your baffles running the length of the hammock or vise versa? I'm sure there is a lot I left out. Any local hangers that could possibly show me their rig would be awesome.