How do you say goodnight my darling in Russian?

There are several ways to say "goodnight my darling" in Russian, depending on the level of formality and affection you want to convey. Here are a few options:

Formal:

* Спокойной ночи, моя дорогая. (Spokoynoy nochi, moya dorogaya) - This is a very formal way to say goodnight to your beloved.

* Спокойной ночи, любимая. (Spokoynoy nochi, lyubimaya) - This is slightly less formal and translates to "goodnight, my love".

Informal:

* Доброй ночи, любимая. (Dobroy nochi, lyubimaya) - This is a more casual way to say goodnight, meaning "good night, my love."

* Спокойной ночи, моя милая. (Spokoynoy nochi, moya milyaya) - This translates to "good night, my darling" and is a very affectionate way to say goodnight.

More intimate:

* Сладких снов, моя любовь. (Sladkikh snov, moya lyubov) - This translates to "sweet dreams, my love" and is a very romantic and intimate way to say goodnight.

You can also choose to use the person's name instead of "моя дорогая" (moya dorogaya) or "любимая" (lyubimaya) for a more personalized touch.

Ultimately, the best way to say "goodnight my darling" in Russian will depend on your relationship with the person you are speaking to and the level of formality you wish to convey.