Originally Posted by
Doug64
I also think synthetic bags are the way to go. The newer insulating materials compress as well, and are as light as down, they are easy to clean, dry quickly, and they are do provide some warmth when wet.
There are reasons why one might use synthetic insulation including some of the reasons you mentioned, but any synthetic insulation I have seen used in sleeping bags is neither as light nor as compressible as down. In fact no synthetic sleeping bag that I have seen even comes close to down for packed size or light weight.