I have this kind of thing too quite often. If I forget to take my seroquel at the right time of day then I get them most often at night, which makes it hard to get to sleep. However, I'm learning a foriegn language at the moment, so often I'll put on head phones and talk along with the recording. This both drowns out other voices, and gives me valuable practise. Also, I find active listening like this tires me out more than, say, listening to music.

You could try a book on tape or something like that?

I have schizoaffective disorder, and don't know much about DID.