People need private space at sea. A cabin is an enclosed room on a ship assigned to passengers or crew for sleeping and personal use.

Crew cabins are usually compact, with a bunk, desk, and storage; passenger cabins range from basic to luxurious depending on the ship. On cargo ships the accommodation block sits above the main deck and includes cabins, mess rooms, and recreation spaces. Noise, vibration, and motion affect comfort, so location within the ship matters.

Modern regulations set minimum standards for crew cabin size, lighting, and sanitary facilities. A well-kept cabin supports rest and morale on long voyages. On passenger ships, cabin grade is a major part of the commercial offering.

• Private room for crew or passengers
• Varies from basic crew berths to luxury suites
• Subject to minimum standards on commercial ships
• Important for rest and morale at sea