"Bella's Lullaby" was a song composed by Edward in Twilight on the piano. He first plays it when Bella first comes to his house in this story. Edward frequently hums the song to Bella when she is falling asleep or when she has a bad dream. In New Moon, Edward makes a CD for Bella which has all the songs he composed, and the first one is the lullaby. This was given to Bella on her birthday. When Edward and his family leave Forks, she finds that all the gifts they gave her, including the CD, are gone. Later on in the book, Edward reveals that he hid all the gifts under the floorboards. For the movie, the song was composed by Carter Burwell. The song appears on the film's soundtrack and score.
"Bella's Lullaby" is featured once again in Breaking Dawn - Part 1.