Bunk

 A built-in bed or sleeping berth on a boat or ship, typically compact and designed to maximise space efficiency. 

A bunk is a fundamental feature of maritime living quarters, providing a designated sleeping area for crew or passengers aboard a vessel. Unlike conventional beds, bunks are specifically designed to accommodate the unique spatial and stability challenges of life at sea. They are often compact, built into the structure of the boat, and may include features such as raised edges or lee cloths to prevent the occupant from rolling out during rough seas. Bunks can vary in size and configuration, ranging from single berths to double bunks, and are typically arranged in cabins or communal sleeping quarters, depending on the vessel’s size and purpose. 

On smaller recreational boats, bunks may double as seating areas during the day, with cushions or mattresses that serve dual purposes. In larger vessels, such as yachts or commercial ships, bunks are often part of more elaborate sleeping arrangements, including private cabins with additional amenities. The placement and design of bunks are carefully considered to maximise space efficiency and ensure comfort, even in confined quarters. 

The term “bunk” is also used colloquially among sailors to refer to one’s personal sleeping space, often regarded as a small but essential retreat for rest and privacy in the demanding environment of the sea. Proper maintenance of bunks, including keeping bedding dry and secure, is crucial for ensuring a comfortable and hygienic living space aboard any vessel.