https://babywhispererforums.com/index.php?topic=87109.0This is a link to some info on early morning wakings that should help. Colin never did that actually - early wakings was the only sleep problem we never had.
I can definitely imagine how hard the preemie thing must be - it really does affect a lot. Jenn(c) also had her LO early and I'm sure she'd be happy to talk if you want to pm her and see how things went for her and Charlotte.
