A Murphy bed, also known as a wall bed, is a space-saving furniture piece that can be folded up against the wall when not in use. This design allows for more floor space in small rooms, making it ideal for studio apartments or multi-purpose rooms. Murphy beds typically come with a mattress and can be easily pulled down for sleeping. They are available in various styles and sizes, often incorporating additional features like shelving or desks, enhancing their functionality while maintaining a stylish appearance in any room.