In response to our callout, you shared (and crooned) bedtime musical selections that work magic. (Well, except for the mom who tried an Enya song... Which lullabies do the best job at bedtime? Readers ...

"Pick a song that you can stand to sing over and over, maybe for years," is advice that Elizabeth Wolf of Merrimac, Mass., gives new parents. "Doesn't matter how well you sing it. Over time that will ...