[Sherlock doesn't associate tonight with the night Joan had her nightmare. He hasn't forgotten that experience, but it's not in his immediate thoughts. He looks over his shoulder at John when she touches him. Curious.

She's probably scared he'll leave again, he decides. He turns his head away from hers before he returns the affection by working his thumb out from under her hand so he can stroke her knuckles.]

I won't go anywhere. If you wake up and I'm not here, it means I'm using the toilet. So, sleep. We've got a busy few months.