I had planned on purchasing tickets for a three bed sleeper night train from Paris to Rome but all that is left is 4 and 6 bed couchettes. Would it be a mistake to pay for four tickets (just for my spouse and son and I) so that we could have a 4 person couchette to ourselves? I cannot imagine trying to sleep with a stranger in the room (plus I snore!)
Do these rooms lock from the inside? Other than lack of a sink, are the 4 person couchettes that different than a sleeper?
I have also tired looking at tickets on a non-USA directed webpage to get a cheaper price, but it appears to me that any English version gives the same prices. Any suggestions?