Can anybody help?

[elisi]

Where/when does Jack talk about not being able to sleep - or that he only sleeps very rarely? It's in S1 of Torchwood somewhere, but since it's been more than a year since I've watched it I honestly don't know where to start looking. Just an episode number would be helpful. (I mean he did say something, right? It's not just a fanon thing that's sprung up because he likes to stand on top of buildings in the middle of the night...)

Anyway - thank you lots avamclean! *smooches*