V.T.
Talk to a lactation consultant. The one at my hospital told me of 3 bottles whose nipples are most like a breast. I don't remember 2 of them because she told me the Playtex drop in nipples were close to the breast and that is what I had at home. I've since passed them on to my sister. Her son is 2 weeks old and isn't having any problems between the Playtex and the breast. What I love about the Playtex is they are easy to clean and don't have all the valves and stuff that Dr. Brown, Avent and Born Free had.