My mum sang these words to me (some 42+ years ago!):

Go to sleep my baby,
Close your pretty eyes,
Angels up above you
Whisper little teardrops from the skies,
Great big moon keeps shining,
Stars begin to peep,
It's time for little piccaninnies to go to sleep.

(Piccaninnies now apparently unpolitically correct (meaning black children). I always thought it just meant 'children'. (What a lovely word, and what a shame it can't just be taken to mean 'children'!) I substitute when teaching this song to others with 'it's time for little, sleepy children to go to sleep.'