Who can give me some good suggestions for keeping warm in my new Clark tx-250? I'm thinking of a 20 degree top quilt and some sort of an underquilt or pad? I generally don't go out hiking in weather below 20 degrees at night. A 20 degree sleeping bag will usually work year round here in the southeast. That's my only data point. I really have no idea where to begin for a hammock. I have a couple of criteria: a) 20 degree b) lightweight and not too bulky.. I'm a lightweight long distance hiker c) not a zillion dollars ... Just spent a half zillion on the new hammock. I could go around 200 for the top quilt, and maybe get by with a pad or something for the bottom. I have the new rei insulated lightweight air mattress ...maybe that would work well. I also have the old standby ridge rest. Anyhow comments and ideas on a system would be greatly appreciated.