Every night; nightly — referring to actions or occurrences that happen each night.
毎晩寝る前に本を読むのが習慣だ。
I have a habit of reading a book every night before bed.
最近は毎晩遅くまで仕事をしている。
Lately I've been working late every night.
彼女は毎晩ニュースをチェックする。
She checks the news every night.