He is going down the stairs to the old chapel where Dracula <sleeps>.
Jonathan Harker is in the castle. He is going down the stairs to the old chapel where Dracula sleeps.
Can I use "sleeps" to mean "usually sleeps," or should I use "is sleeping"? I'm not sure if it's natural to combine a progressive form ("is going down" in this case), denoting an action in progress, with a simple form ("sleeps"), denoting something one generally does.