My son was sleeping 3 1/2 to 4 hours a time at night up until two weeks ago. Now he's getting up every hour or two and only eating two ounces of pumped milk at a time. The only advice I've gotten from people around here (except our pedi) is to put cerela in his bottle, but there's no way I'm doing that until he's at least 6 months. Any ideas to get my little man back on track or is this a normal thing? Anyone else have this issue?