Healthy infant sleep, Part 2: The dependence of healthy infant sleep patterns

If we take a holistic view of the sleep question, we have to ask how successful and beneficial it is when we discover the "normal" situation of medicated sleep and the reach of adult sleep difficulties into so many lives. Is it “normal” that we should let our babies cry to sleep at a point when they most need short-interval feedings and physical contact with us to stimulate growth hormones? What’s the cost to them when we force them to adapt to our needs versus us to their needs?