The spoken use of "night" as a casual, familiar Model of "great night" (wishing a person a restful rest) is popular, but I'm undecided what the correct penned equivalent is - when there is 1. I've usually applied 'Night with the apostrophe, commonly capitalized: As an example, a court case https://collinix863.yomoblog.com/44771316/night-gangnam-퍼펙트가라오케-karaoke-guide-things-to-know-before-you-buy