An overnight sensation is a term used to describe someone or something that has become popular very quickly and unexpectedly. In this crossword, the solutions SNORE (5 letters), FAD (3 letters), and DREAM (5 letters) all relate to the idea of an overnight sensation. SNORE can refer to the sudden and unexpected rise to fame, FAD can refer to the short-lived nature of the popularity, and DREAM can refer to the idea of achieving success quickly and unexpectedly.