My dd is a week shy of 4 months old and we have been transitioning her to 4 hour EASY over the past month. She used to sleep through the night, waking at 5:30am to eat. Since we started transitioning her, she started waking earlier and earlier due to hunger, to the point where she woke up at 2:30am, and I did sh/pat on and off until 3, when she made it clear that she was hungry. I've done the steps from the BW books to increase my milk supply and she seems to be taking full feeds during the day. She is making it the 4 hours between feeds without any problem and she is taking good naps during the day too. At first I thought the change in night sleeping patterns was due to a growth spurt, but it's been a couple of weeks now, and I'm pretty sure that growth spurts don't last that long. She is a bigger baby (15lbs) and has gained 3 lbs in the last 6 weeks. Anybody have any thoughts on what might be going on?