Sleeping systems - bags, pads, matts, liners

the pack size sold me as l like ultralight touring. I have Xero350, but wish l got the lighter 250 as its warmer than its rating for UK 3season.
the ironic part is that l will be looking for a synthetic as l may be transplanted in China where the humidity will kill down!

Sounds interesting, where about in china are you thinking of going.