My DS2 is 7mo and sleeps badly in the day (wakes after 45 minutes and it takes a lot for me to get him to nap longer) but isn't bad at night - down at 7pm, dream feed at 10.30pm, and then goes through to anything between 4-5am.
Trouble is, DS1 is 3.5yo and used to also do the 5am trick - it's only been a year or so that he's actually slept until more like 7am - and now DS2 is waking him in the early morning (karma has worked fast on that one).
I don't think I can go through more years of 5am - DS1 did it for 12-18 months (I can't quite remember) - so we are going to send DS1 to granny's for two nights and try to knock this on the head.
I think we need to do CC, as when he wakes at 5am he is not hungry, and often cries even if we are cuddling him. Used to bring him into our bed but he'd be awake for 45mins-1hr and by the time he'd gone off it was pretty much time to get up. So we need to do something to get him to just sleep a wee bit longer, even just 1 hour would do.
I have never done controlled crying before. Can someone tell me a. if it's likely to work in this situation, and b. how we do it - do we literally just leave him??