Just as cats know instinctively when you are thinking about getting up from the sofa and choose that moment to sit on you; so too do infant daughters intuit when you were planning to go to bed early and decide that this is the perfect evening to insist on being fed for two and a half hours.
Seriously,Eva's been demanding milk on-and-off since 8 o'clock. Where is she putting it all? (You don't need to answer that actually - I am also one of the people who changes her nappies.)
Anyway. She's snoring now, but that could just be a ruse.