So this is still happening.
She says she’s afraid of the dark. We’re still trying to find a nightlight that she likes that keeps her in her room. (She currently has four little lights but apparently they’re not the right ones. Or bright enough. Or who knows.)
We tried a big night light that turns off after an hour. She got up in the middle of the night to tell us her light was off. 
We’re going to try a small lamp next. We’d leave the hall light on, but ironically she wants her door closed.
She’s usually fine after we put her back once. She goes there because she’s smart enough to know we can’t hear her or see her and she has the best chance of not being discovered.
