I Wonder what do you call a family which is most of the time rich and all its members are living a good life and have whatever they need? The idiom/expression/set phrase or even the adjective in my question not only should encapsulate the concept of being wealthy, but also should indicate that the person is living in comfort and luxury and has all the needed facilities at hand. I wonder what would you use to fill in the black below:
— He has grown up in a ................. family?
I used to think that a "prosperous family" is my needed concept, but reading the meaning of this word I decided to ask a new question about it, while it doesn't convey anything about "comfort".