Thanks for all the ideas, guys. I think I will start with the CCF slid inside the fleece bag (which is simply single-layer fleece sewn into a rectangular sleeping bag with a full length side zipper) and using my 20* mummy sleeping bag as a TQ .... good suggestion to start there, then get inside as/if the temps dictate. I was thinking of putting a survival/space blanket, or maybe even another fleece bag opened-up under the hammock as an UQ .... not sure about that idea yet. There sure are a lot of ways to configure these things! As long as I can sleep warm, I will be a happy hanger!