Has anyone heard of a choral song called Christmas Dreaming that is NOT the Sinatra version and starts out with Christmastime time for dreaming - special wishes day Please help?

There is a Christian worship song called "Christmas Dreaming" written by Don Wyrtzen which may match your description although the opening line you referenced was not found. Here are the first few lines. Would this be it?

Sing a little carol while the bells keep ringing

Hear angelic voices through the snow is bringing

It’s our very own song. We sing it well