I don't really know Annobal. Once the others are in bed I feed her, pretty much all evening. I think last night she was just knackered. It didn't help me, sadly!
During the day she's more of a snacker, but that suits me as I can get up and on. So she'll feed frequently one side at a time. Then we sit and I'll be completely empty by bedtime - which is 11ish, then she seems to wake around 3 then 7ish.
Some nights we've had a bath together, she loves that, lies back and relaxes.
Truth is there's no science behind it, just luck!
I've just had curry for dinner. So will be a different story tonight I'm sure!