User blog comment:KillRoy231/How do you feel about Season 14?/@comment-79.115.70.40-20181204194522/@comment-1031724-20181207021305

Maybe they'll explain it. Theory is Jack's grace enables him to hear mortals calling out to him, or his bond with Nick, or both. Or maybe just bad writing.

And technically even once awake in the Empty he's still dead until he annoys Cosmic Entity into reviving him.

Speaking of Cosmic Entity, obviously Lucifer's awakening woke him up so he could play his role in the most recent episode. We know he can sleep once all the dead angels and demons are asleep, but he can stay awake if he so chooses, right? Coz he's planning to be awake for some time...