[Ianto hadn't expected to get much sleep last night either but he eventually drifted off as well only to be woken up abruptly as Spike jerks awake. He sits up, blinking fuzzily as yesterday all comes back. He doesn't know what he expected to happen today, but surely the fact that he's alright and that there's no blood to be seen is a good sign.]
It's alright, you didn't hurt anyone. I would have woken up if you'd left last night.