I try to get in quiet time and book time, but really, the only time I ever get that is when I'm on an airplane - I have a fear of flying, but I actually love flying because it's the only time I can sleep, and it's the only time I get to read.
I have no problem selling books to media franchises and we do it all the time. The author must understand that he/she is a writer for hire and has no control over copyright or over editorial changes made to the text.