Hi! My husband and I are visiting Sifnos soon, but we are making the journey in one day (eg flying into Athens very early in the morning) and catching the ferry in the afternoon. Does anyone know if we're likely to be able to doze off in the airline type seats on the ferry, and if you think not, would it be possible do you know, to upgrade to a cabin or something at the last minute or on board (we already got a travel agency to get us regular tickets). My husband is also flying in from Mexico the day before, so I reckon he's going to be exhausted, especially after very early start in London! Any advice greatly appreciated!