I've heard it said that if your sleeping bag is soaked, you're going to be uncomfortable, but at least with a synthetic bag you will survive.
If the issue is death vs survival in a soaked bag, I thought it would be good to list some cases where people HAVE died in Alaska in a soaked sleeping bag, the circumstances surrounding the fatality, and what the insulation of the bag was.
There must be millions of bag nights with both down and synthetics, so if it is serious life/death issue we should be able to put some numbers to it.
I found this list of Alaska outdoor fatalities. Lots of the expected crashes, drownings, and avalanche deaths. Undoubtedly not a complete list, though. Didn't see any soaked sleeping bag deaths in a quick scan.
In my opinion, it's going to be a rough trip in a soaked bag no matter what the insulation is, so Step 1 is to keep your bag dry.
Can anyone list some cases?