The B&B CASA GIANNA in Ciampino is a very nice place, quiet, well managed and friendly where we spent the night twice already in different occasions when we needed to be close to the airport for travelling to Scotland for visiting friends and family. The rooms are clean and comfortable, the breakfast is varied and nutritious. They have travel cots available and being late is not an issue. There is a restaurant in walking distance that does fabulous pizza.
The only disadvantage is a steep downhill to get in the garage if you reach the place by car.
Prices are excellent.
