Christ Child's Lullaby, in the Gaelic, is available on my Gaelic Christmas Songs page. It's titled Taladh Chriosta. There are 27 verses.http://www.geocities.com/Area51/Zone/6338/xmas_sng.html
There are other songs including one or more lullabies of other sorts on the main song page
http://www.geocities.com/Area51/Zone/6338/gael_sng.html