A type of bed in which one bed is stacked on top of another. A bunk bed refers to a type of bed furniture that consists of two or more beds stacked on top of each other, typically in a vertical arrangement. This design allows for multiple people to sleep in the same room while utilizing floor space efficiently. Bunk beds are commonly found in shared bedrooms, dormitories, and childrens bedrooms. Typically, they have a ladder or steps to access the higher bed, and they often come with safety features like guardrails to prevent falls.