I have a 3 week old baby and she's really good in the day, e.g, has her naps after each feed and what not but when it gets to the night time she won't settle at all, not even for a hour! I've got some infacol in case she has colic but it's not helping, can anyone give me some advice please? I know it takes newborns a few months to get into a sleeping pattern but she just won't sleep at all.