I agree with all the PPs. Just wanted to say, also, that according to Dr. Sears (and my observations with friends who made such claims) a lot of those parents who have practiced sleep training just start sleeping through their child's wake-ups. Think about it -- if you train yourself to ignore your kids' cries and they're in another room, they probably will stop waking you at some point. And they probably will stop crying, because what would be the point? My LO has been sleeping pretty well since about 15 months, with some bad nights. At some point, the zombie state just became normal for me -- I haven't slept a full night in over 2 years, and I have another one coming soon enough! I now scoff at people with no children or grown children who whine to me about how tired they are! I'm sure I said the same at some point, but it changes your perspective.