Sitting Pretty Meaning

(idiomatic) In a favorable situation, especially a situation in which one possesses an advantage.

Example: 1973 July 20, "People in the News," Time:
  Lauren Hutton, 28, was sitting pretty. The omnipresent model had just signed a two-year, $200,000 contract.
1922, Rex Ellingwood Beach, Flowing Gold, ch. 24:
  I'm in control. I'm sitting pretty. They can't unseat me, and I warn them not to try.