How do you say good night I love in french?

There are a few ways to say "good night, I love you" in French, depending on the level of formality and intimacy you want to convey:

Formal:

* Bonne nuit, je vous aime. (This is the most formal option, using the formal "vous" for "you".)

Informal:

* Bonne nuit, je t'aime. (This is the most common and informal way to say it, using the informal "tu" for "you.")

* Dors bien, je t'aime. (This means "sleep well, I love you.")

* Bonne nuit, mon amour. (This means "good night, my love.")

Romantic:

* Bonne nuit, mon cœur. (This means "good night, my heart.")

* Je t'aime, mon trésor. (This means "I love you, my treasure.")

You can also combine some of these phrases:

* Dors bien, mon amour, je t'aime. (Sleep well, my love, I love you.)

* Bonne nuit, mon cœur, je t'aime beaucoup. (Good night, my heart, I love you very much.)

The best way to choose the right phrase depends on the context and your relationship with the person.