It is the Ames Brothers and one of my favorite Christmas songs. We had it on an old Christmas LP in the late 70's I think.

"Twas the night before Christmas when Santa is near
all the children to dreamland will soon disappear
but there's one little darling who won't close an eye
till you call for the sandman with this lullaby

sing ting a ling a jingle and hold me so tight
sing ting a ling a jingle and kiss me goodnight
icicles on the window and snow on the ground
sing ting a ling a jingle til Santa comes round

It's the same the world over in all babyland
for a smile is a language we all understand
you can pet them or scold them; your patience they'll try
till they turn into angels with this lullaby

chorus repeats

(at least, that's what I can remember)