Much has been written about the cognitive boost your baby can receive from exposure to classical music, especially Mozart's. Musician, teacher, and author Don Campbell has made a career of exploring the link between Wolfgang and whip-smart kids, as discussed in his books The Mozart Effect and The Mozart Effect for Children. Campbell has also compiled companion albums featuring selected Mozart works geared to give your little ones an intellectual leg up in the world. Apparently, the music can boost their brainpower even while they're sleeping -- or at least while winding down for bedtime. That's the premise of Nighty Night, an album of restful Mozart pieces that includes liner notes offering suggestions for how best to utilize this listening time with your baby.