My 3 1/2 wk old has got her daytime and nighttime confused - she'll sleep pretty much all day then be wide awake at night. I've tried everything to wake her up / keep her awake during the day but she even sleeps through nappy changes and baths. I do all the obvious things - feed her regularly during the day, take her out into the daylight, am noisy around her, then keep things very quiet and dark at night and put her straight back in her cot after nighttime feeds - yet things seem to get worse every night rather than better. ANY ideas on how to help her to adjust her body clock and how to wake her up during the day?