We all know what cows do all day, as do their calves who get the beta casinomorphins (or whatever). Do we really want our babies to just lie around all day chewing their cuds (or their pacifiers, as the case may be?) Unfortunately, I think for many women, the answer would be yes - as long as the baby is "content" and not crying, then sleeping is best -- even if they aren't learning. I wonder if bf babies are smarter cuz they are awake more so they learn more about their world? Jan B.