Both Prati and Ottaviano are residential, well-lit and comfortable to walk through in the evening — a practical consideration travelling alone that's easy to overlook when comparing hotels purely on price.

One detail worth asking about directly: many hotels in this range quote their "single room" only in the smallest category available. A discounted single-occupancy rate on a standard double is often cheaper — and more comfortable — than a dedicated single, which older buildings tend to have very few of.