What is Good night and sweet dreams in french language?

There are a few ways to say "good night and sweet dreams" in French:

Formal:

* Bonne nuit et de doux rêves. (This is the most literal translation and is appropriate for most situations.)

Informal:

* Bonne nuit et fais de beaux rêves. (This is more common among friends and family.)

* Dors bien et fais de beaux rêves. (This is another informal option.)

You can also simply say bonne nuit which means good night.