Back to the sane that can read, like I said down has to be treated a bit more carefully. You can't just crawl in it night after night in wet clothes, or use it night after night in a single walled tent in continually wet conditions unless it's got a dryloft or equivelent shell (or Bivy cover). A double wall tent and dry night long undies are your friend there... a VBL is your friend in brutal cold if out for more than a few nights.
Like I said, not hard.
