Apart from the rocking chair, similar experiences. We have a family lullaby going back several generations to the middle of the 19th century, or at least that's when the broadside was printed it was based on. However my two took a lot more than a single lullaby to get off. Marching up and down the bedroom with one of them over my shoulder singing a nice rhythmical 'Oh Adam Buckham-O' (by the High Level Ranters) usually did the trick.