The Doctor had a short, fierce inner struggle. On one hand, it was likely improper, and taking advantage, and poor form.
On the other hand, Rose Tyler wanted him to stay with her, and damned if he had it in him to say no.
"Oh, all right then," he said, settling in next to her. He could do with a kip after the tumult of the past few days besides. "But no snoring. That's where I draw the line."
He grinned at her from the other side of the pillow.