👉 Nocturnality is a concept that describes how an individual's behavior, mood, or mental state changes at night. It can be defined as being more active and alert during the night, and less so during the day. This can affect sleep patterns, mood, energy levels, and overall functioning of the body. In other words, nocturnality is a term used to describe how an individual's behavior or activities change at night, which may impact their sleep quality, energy level, and overall