Editing Constitution Class (section)

===Crew quarters===

Crew quarters were located throughout the saucer section – keeping with Starfleet tradition, Deck 5 housed the senior officers' quarters. On the refit configuration vessels, these staterooms were quite similar to the VIP units on Deck 4, with only a few differences.

On starships of the original configuration, the officers' quarters featured two areas, separated partly by a wall fragment. One area was allocated as sleeping area, featuring a comfortable bed, and another as work area, including a desk and computer terminal. Entrance to a bathroom was provided through the quarter's sleeping area. Both areas could be configured to personal preference. (ENT: "In a Mirror, Darkly, Part II"; TOS: "The Enemy Within")

On the original series, several "different" crew quarters were seen, but always the same set was used, changed by different lighting designs and furniture configuration. 

On Constitution-class vessels of the staterooms of the senior officers were composed of two areas which were separated by a retractable, transparent aluminum partition. The room's entrance opened into the living area. A library computer terminal and work desk were provided here. The room's corner circular nook, normally occupied by a dining booth, could be modified at the officer's request.

The other half of the stateroom was a sleeping area, which held a single large bed that could double as sofa during off-duty relaxation. A transparent door led into the bathroom area. By the 2290s, crew space was at a premium, and the size of officers' quarters was reduced to one large room and crewmen were housed in dormitories with bunk beds. (Star Trek: The Motion Picture; Star Trek VI: The Undiscovered Country)

Aboard the original Constitution-class starships, there were at least six recreation rooms, which included three-dimensional chess and card game tables. There was also a holographic rec room, which was the predecessor of the holodeck. Also aboard were as arboretum, gymnasium, a bowling alley, a theater, and a chapel. (TOS: "Charlie X", "The Naked Time", "The Conscience of the King"; Star Trek: The Motion Picture))

On the refitted Constitution-class vessels, recreational facilities were further expanded. One large room in the aft section of the starship's saucer section furnished off-duty personnel with a wide variety of recreational games and entertainment.

At the front of the room was an immense, wall-mounted viewing screen. Beneath this was an information display alcove; five small screens exhibited, upon request, a choice of pictorial histories. A raised platform in the center of the lower level floor featured a diversity of electronic entertainment. (Star Trek: The Motion Picture)