I can't see why any Amazon operation would need to utilise night slots - if you look at the current EU operations they all operate during daylight hours. Unless they were to operate in two waves with an overnight operation and a daytime operation eventually? The current UK hub is at East Midlands but with their chosen operator having many more aircraft on order I wonder if growth into other UK hubs is on their agenda, such as Southend, Teesside and maybe Edinburgh?