I'm thinking of doing the Kokoda track next year in the 'dry' season (still extremely humid) which makes me think synthetic gear might be better than down.
The lowest temperate I expect to face is about 10 degrees C while most nights could be double that and still very humid, where I almost wouldn't need a sleeping bag/quilt at all.
I currently have a quilt made by Javan Dempsey that weights 530 grams (18.8 ounces) which I would love to take but I am worried about the down soaking up all that humid air.
Are my fears justified? And if so, what would be a suitable, lightweight synthetic quilt down to about 10 degrees celcius? Or am I better off getting a BPL Cocoon set and not taking any quilt at all?

