Meaning and usage of the word sleep over in English

The phrase "sleep over" is a relatively recent addition to the English language, dating back to the mid-20th century. It originated as a blend of two separate phrases: "sleep" and "overnight stay." The term "sleep" is a well-established verb meaning to spend time resting or dozing off. "Overnight stay," on the other hand, refers to spending a full night in a specific place, typically in the context of an accommodation or visiting someone. By blending these two phrases, "sleep over" emerged as a more succinct and expressive way to describe an arrangement where somebody spends a night at someone else's home beyond their usual visit. The phrase's increasing popularity in popular culture and everyday speech further cements its position as a useful expression in the English language. Its simple and vivid description helps to clarify the meaning of the activity, making it convenient to use in informal conversation or written communications.