i planing my trip, so i woud like know how much money i have to leave extra for supplement. we want to go from istanbul to ankara by night train (ther is overnight and sleeper. i don't know the difference.). if someone went by these trains how much pay for supplements?
after that we plan to go to izmir (and then to pamukkale). there are also two trains: izmir mavi tren and karesi express (nighte trains). the same question.
(sorry for grammar