I have two sleeping bag. The old one is about 20 years old Haglöfs. Very warm with synthetic filling. And a bit heavy.
The new one is Haglöfs Cetus -10. Duck-down filling makes it much lighter, but still warm.
Down is more sensitive for wetting, but I have had yet no problems. Even during heavy raining my tent has kept water outside keeping the sleeping back dry. Moisture in the air inside the tent has not been enough to wet the bag.