It is also known as "To Bed, To Bed" or "Sleepy Head" is another rhyme from the traditional rhyme collection. It is very popular in the USA and Great Britain, as first published in “Traditional Nursery Songs of England with Pictures by Eminent Modern Artists” by Sir Henry Cole in 1843
“Early to Bed” is a very old rhyme, dating back as far as the 15th century. The description of it as 'old English' in 1486 does place this expression as one of the oldest phrases still in use in everyday English.
This song is written from the perspective of a mother who tries to console her crying child and promises him to provide a lot of things if the baby stays quiet. She mentions the list of things that the baby’s father will buy while trying to put the baby to sleep. A mother knows her child’s likes and dislikes, and she assures the baby that if these things fail to make the baby happy.
It is a popular modern American song describing the heating and pouring of a teapot or a whistling tea kettle. This song is perfect to sing when the children are having "tea party" or when they are "cooking".