My baby is 7 months old and has dropped her afternoon nap but really struggles to get from 2pm to 6pm, although she will not have a nap in the afternoon. Henceforth she falls sound asleep on her bedtime bottle and only takes 40mls (there is no waking her then). She has a good solid tea at 4.30pm and gets around 520mils of milk a day, how important is it she takes a full bottle feed at bedtime?