Here's something I've come across a number of time with my girlfriend. She can drift in and out of sleep quicker than anyone I've ever known, and as a result she sleep-talks a lot.

I can interact with her while she's sleep-talking. If I go along with what she's saying, she'll talk to me in the context of her dream for awhile and then fade off to silence. But if I talk to her and tell her she's sleep-talking, she'll initially get annoyed and deny she's sleep-talking, and if I press her on it, she accept that she's sleep-talking to me and thus attain lucidity. She'll soon drift off from me and no longer talk, but she reports that the ludidity continues in her dream.

Anybody have anything similar?