I don't think it's the sleep that triggers it. [ Logan pours more water into Cable's cup. ] But I've only seen her teleport twice so far.

[ He knows he has Erik around to talk to about things like this, but Erik also brings with him a ridiculous amount of Expectation. Disclosing the nature of Henry's powers so early on would bring about the harshest training... and Logan still wants to give her that choice of learning instead of having the burden thrust upon her. ]

It's triggered by heightened emotional distress, probably. [ Sitting back down in his chair, Logan tries not to feel too surprised at the linguo he's using-- like he's at Xavier's again, having a faculty meeting again. ] I think she must have had a really bad nightmare? But...

She can feel it when it starts happening. She just can't get it to stop.