Stayed for one night with my wife and daughter, and had a problem with the room. It was really warm on arrival, there were no windows that could be opened, the thermostat was as low as it could go… I checked the ventilation, and there was none! So I went to the front desk and explained this, and minutes later, a maintenance man arrived. All good (I thought) however he opened the ventilation only a bit and the three of us could hardly sleep. I understand that energy is expensive in Europe, but…