DS is 6 weeks. I realise that for some people the answer may be 'never'! But when do babies start to stay happily awake a bit more (i.e not awake to JUST feed or grizzle or sort of stare vacantly about!) and generally be a bit more interactive!? I have a dd aged 3 but have developed insomnia about every part of her time as a baby so can't remember a thing about when she did a,b or c!