Your own Google search on
goodnight sweetheart song
would have produced a site with the words in less than 1 second
From the first listed site
The spelling istakes are on that site
Good night, sweetheart, till we meet tomorrow.
Good night, sweetheart, sleep will banish sorrow.
Tears and parting may make us forlorn,
But with the dawn, a new day is born.
So I'll say good night, sweetheart, though I'm not beside you,
Good night, sweetheart, still me love will guide you,
Dreams enfold you in each one I'll hold you.
Good night, sweetheart, good night.