He lets the silence stretch as long as she needs. She has the cat, and she doesn't seem to be having an adverse reaction, at least not at the moment, so as far as he's concerned she can have as long as she wants.

It doesn't last, but that doesn't exactly surprise him either. "I don't think any of us know where we're going." There are shades of ever wonder why we're here in there that are a little too easy to fall into, but there's also the slightly more relevant question of what the hell is the train doing, and he stays with that. "I can tell you that we're still on the train, and that the train is still at the platform. Beyond that...I don't think anyone knows what it's doing." He sighs. "There might be something in medical to help you sleep, but you don't have to take it if you don't want it." He knows what that's like - to be drugged and dreaming, stuck in a nightmare because your body cannot wake up - and he's not about to force it on her. Not if she's susceptible to that sort of thing. "I don't think I can help you with the dreams, though." If she's even having the same weird not-his dreams that he is. Hopefully, she isn't.