My baby is 7months old, and is doing well with sleeping at the moment, except she wakes every night at 3am, she doesn't seem to want a feed (when I feed her she doesn't go back to sleep, it just seems to wake her up more!). I give her a cuddle and put her down, and she then does this infuriating thing where she goes quiet for about 30 secs, then cries for 10 secs (ish). It is like torture as I keep thinking she's gone off to sleep then she starts squawking again! If I go in to her then she starts the full on screaming again. What do I do?