Thanks UkrAL. I can remember walking from terminal D to terminal B before terminal F was built, but can't remember seeing a hotel there. The Borispol Airport Hotel stood on the main road out of the airport.
Life is much easier now that terminal F is there. The distance between B and D was a pain, especially in the rain or on a tight schedule..
I do miss terminals A & B. The café in B was good, albeit short of chairs, and terminal A was very quaint and homely.