I remember blogging a year ago about how Matthew quietened down and slept within moments when we sang Edelweiss from The Sound of Music. It was quite a while since I last sang it to him. 2 nights ago, he refused to lay down quietly during bedtime until I sang the song. He laid down very still next to me and fell asleep within 5 min. It happened again last night. I was totally amazed that it still works!