What does go to sleep baby is in spanish?

There are a few ways to say "go to sleep baby" in Spanish, depending on the context and level of formality:

Formal:

* Duerme, bebé. (This is the most literal translation, but it's more formal and less common in everyday speech)

Informal:

* A dormir, mi amor. (This is more affectionate and suitable for a small child)

* A la cama, mi niño/a. (This is a common phrase for bedtime)

* Vete a dormir, pequeño/a. (This is a more direct command, but still gentle)

* Buenas noches, mi bebé. (This is more like saying "good night" and can be used for a child who is already in bed)

The best way to say it depends on the specific situation.