Hey There,
I feel your pain and frustration......I'm burning too many calories just trying to rack my brain around why why why!!! My DS was sleeping through the night and is now waking again, just once, and hungry cause he's taking a full feed!! He's a monster, as one lady alreayd noted, you can lead a horse to water but you can't make him drink!!!! I will be trying to right before his nap, give him just an extra couple of ounces (not bf anymore)and she says it won't make them a snacker since he's still going down awake and falling asleep on his own, this is the only way I can think to get the extra calories into him!!! They say if they don't take a full feed they aren't hungry and if they are waking at the same time every night they are probably habitual wakers........they say. Well, I'm doing everything as it should be and my DS still wakes........so as another lady said, all babies are different and some are just better sleepers. One method I saw was kindoff a beat them too it method. If they are waking at 3 gradually go in earlier and earlier on your own before they wake and feed them then, the goal being to get them brought back to the Dream Feed time. I'm going to start to try a dream feed. I don't know how my son could possible be hungry still, in a 24hr period he is taking in like 37oz!!!! Heis almost 15weeks and is about 16lbs.
Hang in there ladies and remember, it will come......hopefully just for a few weeks even, before the teething starts!!!!