The Doctor initially wanted to pull away from Jack's touch, but it was welcome, especially after the odd dream. The odd Ood dream. He hadn't had a nightmare in a long, long time.

"Oh, nothing to worry about," he said. "Just got a bit overtired. I don't sleep like you lot do, I just tend to keep going until I stop." It was always something that worried his companions the first few times it happened, but eventually became more of an annoyance than anything else. After all, who would want to have their compatriot go to sleep halfway through a conversation once a week or so?

"Sorry about that." He reached a hand up and struggled to his feet.