"Time lords never sleep", he'd often said -- well, yes they do, though
hardly as much as humans do, so it might as well be true. He wasn't
sleepy anyhow. Not in the slightest. Besides, he wasn't entirely
human, surely he'd kept something of his Gallifreyan physiology! He
only had one heart, but that didn't mean -- he yawned, unexpectedly --
clearly, this world's oxygen ratio is slightly off, and without a
respiratory bypass, well -- Rose adjusted, he would too. He yawned
again, and closed his eyes -- easier to think, he reflected, leaning back
in his chair, as her gentle kiss went unnoticed.