The spoken use of "night" as an informal, common Edition of "good night" (wishing just one a restful sleep) is popular, but I am not sure what the right written equal is - when there is a single. I've usually utilised 'Night with an apostrophe, normally capitalized: "Day and night https://edwinhxite.iyublog.com/36820879/night-gangnam-퍼펙트가라오케-karaoke-guide-fundamentals-explained