We went to bed at half past one, got up at 7. If anyone doesn't know, check-in for international flights starts two hours before departure, and the airport highly recommends that you arrive exactly like that – well in advance. Basically, everything depends on the number of queues and checks. We showed up at the airport early, so we killed time eating sandwiches, a whole mountain of which had been made for our journey. (I won't say by who, so I don't get it wrong, plus you don't know anyone yet anyway).