As a part of the package, you'll walk a secret passage on the first floor to the grand dining room for a candlelit dinner, prepared exactly the way Harker's first meal in the castle was prepared in the novel.
The castle houses over 57 rooms with a bevy of towers and secret passageways. Guests will be able to explore at their leisure until bedtime when they'll be taken to their quarters, comprised of velvet lined caskets in the castle's crypt. It will be a nice, quiet evening of sleep that couldn't in any way be construed as totally terrifying.
If this all sounds like your bag, you can apply for the night of creepy fun here. Your travel and expenses are covered by Airbnb, but they do ask that you leave garlic and silver jewelry at home. It's not that the castle is haunted, they just really don't want you to lose your priceless jewelry and garlic so far from home.