So I put in the new hides last night, and so far I don't think she's gone inside them at all. I see her curled up behind or sprawled up behind one of them. Im pretty sure she is sleeping outside of the hides as well. Maybe because the tank is so dark and covered she is treating the entire tub as a hide??
Earlier I turned on a dim light with this assumption to see what she would do, she stuck her head inside of the hide to get out of the light until I turned it off.