Craftilea has a smallish basement and a smallish attic.  Each one is large enough for a nice room.  Both have windows that have blackout shades stapled over them, with a comfortable bed.  The attic has her clothing, while the basement is sort of a temporary type of thing.  useable in case of.  She also has a room at Diana's apartment. Nothing big or fancy, but enough for emergency type use, should the shop be unuseable for any reason.
There are doors of course.  One leading to a very small back room, with a door to the basement (locked with padlock) and door to the attic, (also locked with padlock)  both doors can also be deadbolted from the inside.

One other thing, she does keep the attic either heated or cooled comfortably, mostly to keep her clothing nice and fresh.  The bathroom is downstairs, but thats not really a problem at this time.  It does have a full tub and shower, which is odd for a business, but one of the reasons she took this particular building.  The bathroom is off limits to customers.
The door to the shop from the backroom and the door to the back recieving are also deadlocked while the shop is closed.  The front door of the shop and the back recieving door both have alarms, although, its quite possible Rose would not hear them if she were asleep.  Since thats during the day, she doesn't worry too much, since its only about three or four hours that she is asleep, with no one else there. Diane does get there early to make sure deliveries are made, and the store is ready to be opened.