Salotto Mergellina

Address: Vico Santa Maria della Neve, 25, Naples. A quick check on the map can help confirm the entrance and the easiest approach.

Looks like they're open every day, so you don't need to worry about timing your visit around a closed day.

According to available data, this is an apartment. That usually means more space, a more self-contained setup, and greater independence than a standard hotel stay.