Dave Milgram also sings SWEETEST DREAMS BE THINE on his album "Just Before the Helpers Come," 2004. I was able to transcribe this much from a sound sample at Allmusic.com:

They say a star shines bright in the heavens to glorify the new-born king,
But sleep, my joy; let nothing destroy thy blissful slumbering.
Loo-doodle-oodle-oo-doo, (etc.)