It was a tradition in my family to read this poem every Christmas Eve just before bedtime when I was young. The poem was first published anonymously in 1823, but Moore admitted authorship in 1837. The poem is credited with cementing the idea of Santa Claus and gift-giving into the Christmas traditions of modern times. This is the earliest edition that I was able to locate, and the entire poem is included beneath the fold.
Ice Swimmer says
Merry Mishmush and Good Night for all!
chigau (違う) says
HOHOHO
Lofty says
Merry Chilloutmas to everyone.