I've been using my Kozy Carrier. Still a front carry w/my big almost 4 month baby. I'm not brave enough to try a back carry yet, and he spits up a lot and I don't want that running down my back. <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/redface.gif" style="border:0px solid;" title="Embarrassment"> Anyway, I notice that he puts his face in my chest and sleeps that way or if his head is turned to the side, he buries it in between the strap and the front of my shoulder. So I walk around frequently bending over to move his head. Does anyone else's baby do this? Is it okay? Should I just keep moving his head?