To say "good night" in an Igorot dialect, you need to specify which language you're interested in. Some examples include:
* Kankanaey: "Naimbag a rabii" (pronounced "nay-im-bag ah rah-bee")
* Ifugao: "Naimbag a bengi" (pronounced "nay-im-bag ah ben-gee")
* Benguet: "Maayo nga gab-i" (pronounced "may-oh nga gab-ee")
It's best to ask a native speaker or refer to a specific dictionary for the correct greeting in the dialect you're interested in.