This is a rumor only, not personal experience, but it's worth a try, since we're in a Solar Maximum period: Talk to the ship's naturalist about aurora notifications - it you want to be woken up, they may set up a notification on the cabin phone network. If that's done, there may also be the possibility that they dim or extinguish some non-essential (non-navigation!!!) lights.
It can't hurt to ask, and to get anyone you talk to on ship to ask as well!