I have avoided it so far as I've read studies showing that cry-it-out babies still feel the same level of stress hormone when they're in their cot and not crying, they just stop expressing it (after they've been successfully sleep trained).
But I'm so tired I'm losing the plot!
Toddler DC up all night because of potty training and accidents (Won't go back to a nappy at all).
Baby DC (not far off age one) up all night feeding. Both awake at 5am every morning.
It's baby DC that I'd sleep train, obviously. Not the toddler!
I don't think baby DC needs to feed three times a night (7pm feed at bedtime, 10pm feed, then 2am feed, then 4am feed and up at 5am with no feed as he's full up from the night 
, and breakfast at 7).
What do I do? Is sleep training really that bad?!?! I mean, I know so many people who've done it and they have perfectly happy, secure kids.
Are these studies just giving us something else to feel guilty about?
Baby Dc only ever naps in the buggy, too.