"Goodnight my love, until tomorrow" translated from English to German, is "gute Nacht meine Liebe, bis morgen."
See how to wish someone a good night in numerous languages at Omniglot.
Today German is spoken by more than 100 million people. Speaking and understanding German will improve your knowledge of the culture and your employment opportunities. Maybe you want to travel to Deutschland or study there because although German is sometimes considered to be one of the more difficult languages. Learn all about the German language at German Language Guide.
Get tips for German language learners at InterNations.org.