My 6 week old is basically permanently asleep, he will wake up to feed and during nappy changes and will cry a lot during these but quickly goes back to sleep. We don't really have any time where's he awake and alert and happy, if he's awake he's fussing/crying. My eldest was totally different and had smiled by now but my baby hasn't been awake long enough to get a smile out of him! 😂 is this unusual? He was 3 weeks early but still full term 37 weeks.