Name a song that makes you fall asleep. Interestingly enough, I need complete silence in order to fall asleep - no TV, radio, or music. I know, soon enough there'll be a baby crying me to sleep - or lack thereof.
Seeing how I am into the Twinkle Twinkle Little Rock Star series, I will go with Muse's lullaby version of "Starlight".
I listen to this album all the time, regardless the time of day. Buy it - if not for your baby but for yourself.