Many regular cruise rooms, also called cabins or staterooms, can sleep up to four people. All rooms have two twin beds that can be pushed together to form a queen or king; additional sleeping spots might be a pullout sofa or upper bunks that fold down or pull down from the wall or ceiling.

The number of people that can sleep in a cruise ship stateroom typically ranges from two to four guests, though specialized configurations exist for larger groups. Standard cabins are designed with two twin beds that can convert into a Royal King. To accommodate more passengers, many rooms feature "pullman" beds that drop from the ceiling or sofa beds that convert at night. For larger families, most modern cruise lines offer Family Staterooms or "Suites" that can house five to six people in a single unit. On ultra-luxury or newer "Mega" ships, you might even find two-story lofts or interconnected "Family Clusters" that can sleep up to eight to ten individuals. It is important to note that every ship has a strict "lifeboat capacity" limit for each section; even if a room has physical beds for four, the cruise line may limit it to three if the total zone occupancy is reached. Always check the specific deck plan of your ship, as "quad" rooms (sleeping four) are the most common upgrade from the standard double occupancy.