I figured it out.
Same kind of dreams all night again. Instead of freaking out about it, I tried to console the dying. I told them it was ok to die. It's the only certain, concrete, fully stable thing in life, knowing we'll die. I slept a very long time and feel fairly good though still sad for them. There were seven last night, all of them freaking out. I was too, but they all seemed more ok with it when I talked to them and told them it was ok to die. Death wasn't the end by any means. One of them thanked me for being there, while she drowned in the freezing waters under the ice. I told her that it's ok for it to be the time. We never know when it's time and she didn't need to let worry fill her final moments in something so beautiful.
This all seems so disturbed that I'd do this, but I'm very much at peace with the dreams now. I don't want them to keep happening, but it's ok if they do