Christmas carol title - which one is it?

[lotuscandy]

I have the first letters of a Christmas carol, but I can't figure out for the life of me which one it is:
S....... H....... L....... O.... A B..... O... S.........

The spaces after each first letter are relative so that should help solve the mystery (e.g. O... is probably "Of")
Cheers!

[lotuscandy]

See Him Lying On A Bed of Straw

[Lakitu]

You answered your question 2 minutes after asking? LOL