床铺 (chuáng pù) literally combines 床 (chuáng), meaning 'bed', and 铺 (pù), which here functions as a noun suffix indicating a 'laying down surface' or 'sleeping arrangement'. Together, it refers to a bed as a functional sleeping space — especially emphasizing the bedding setup (mattress, sheets, quilt, etc.) rather than just the furniture frame. It’s commonly used in contexts involving temporary or shared sleeping accommodations, such as dormitories, train berths, military barracks, or guest rooms.

Unlike the more general word 床 (chuáng), which can refer to any bed (including decorative or structural ones), 床铺 carries a practical, utilitarian nuance: it implies readiness for sleeping. You’ll often hear it in phrases like '整理床铺' (tidy the bed) or '加一张床铺' (add a sleeping berth). It’s neutral in register and widely used in both spoken and written Chinese, especially when describing living arrangements or accommodations.