Meaning
A curved crescent moon on its own, usually yellow and tilted, without the dark part of the disc. It is the generic night-time moon rather than a precise phase.
It is the go-to emoji for goodnight messages, sleep and dreamy night aesthetics, often with ✨ or 💤: “Off to bed 🌙 talk tomorrow.” The crescent is also an important symbol for many Muslims, so it appears in Ramadan greetings too.