And regarding flying - my body is shouting "why are we awake" at me, and I'm begrudging a bit flying with Turkish Airlines which I'd usually try to avoid (I didn't book my own flights for this trip), but I have at least made it to the departure lounge for the first of my flights. I hadn't realised how quiet the airport would be at this time, I didn't need any time at all to get through it, but better safe than sorry and the Istanbul change is slow (3hr layover) so should be comfortable.