What is 'Sleep well Beautiful one' in French?

Dors bien, Belle is a French equivalent of 'Sleep well, Beautiful one'. The imperative 'dors' means '[you] sleep'. The adverb 'bien' means 'well'. The feminine adjective 'belle' used as a noun means 'beautiful one'. All together, it's pronounced 'dohr byah behl'.

That's for a 'beautiful' female. For a 'beautiful' or 'handsome' male, the Word becomes 'beau'. That's pronounced 'boh'.