My experience with down hoods in what I call serious dry cold is that they d9 not move with me. My hair is long maybe that is part of the problem. Up and moving with the hood collar tucked into the neck off my parka and secured well the down hood is very nice. Mostly for my version of "really cold", my Buff a good pillow and my little kid hood works very well.
Down needs room to expand, so in my experience the light fabric filled with down do not meld well with my head. My down quilts just skim over me and block drafts, the down hoods seem to have a life of their own, when I try to sleep in them.