Hi Juno
Sorry, forgot to reply about that bit. Well, I think it really depends on how booked up they are as to whether you can keep your room. The first time we were there we paid 25 euros and kept the room, last time we were able to use a different room for showering etc. We fly from East Midlands very late at night and arrive there around 6am and then when we fly back we don't get picked up until around 1am as the flight is at 5am. There is plenty of space to leave your luggage and don't worry it will be safe as houses as, by the time you leave, you will know everyone else in the hotel
If you think you want to keep the room, ask Costas at the beginning of your last week and he will let you know later in the week.
Fiona