Children under six travel for free, aged 6 to 9 get a 25% discount for sleeping berths and seats; aged ten and over - total price. Children can only travel free if they share a seat/berth with you. In this case, you do not need a ticket for the child; just be prepared to show their passport to prove their age when boarding. If you want a child to have their seat, you must book a regular ticket, and we will apply a discount of 25%.