I have just taken an overnight train from Praha to Budapest and I booked a couchette 4 ticket. However I found that is a couchette 6 's room and all beds could not be folded up. Just they sell 4 tickets in C4 and sell 5 tickets in C6. I found this is cheating. I would like to have more space at least could be sitting on the bed therefore booked a C4 and paid for C4's price. But now.....!!!!! It's very hard on the bed since I could not sit all the time. That 's really CHEATING!!!!!!!