Edith Wharton 
Twilight Sleep (Annotated) 

The extended family of Mrs. Manford is determined to escape the pain, boredom and emptiness of life through whatever form of 'twilight sleep' they can devise or procure. And though the characters and their actions may seem more in keeping with today's society, this is still a classic Wharton tale of the upper crust and its undoing — wittily, masterfully told.