The spoken utilization of "night" as an off-the-cuff, acquainted Model of "great night" (wishing just one a restful sleep) is widespread, but I am not sure what the right penned equivalent is - when there is a person. I have constantly used 'Night using an apostrophe, commonly capitalized: For instance, https://johnnyymzju.canariblogs.com/5-tips-about-night-gangnam-퍼펙트가라오케-karaoke-guide-you-can-use-today-52716675