roomette

[ roo-met, roo- ]
/ ruˈmɛt, rʊ- /

noun

a small private compartment in the sleeping car of a train, usually for one person, containing its own washroom facilities and a bed that folds against the wall when not in use.
any small room, especially one used solely for study or sleeping.
a private room connected to a box at a sports stadium or arena and used for entertaining guests.

Origin of roomette

First recorded in 1935–40; room + -ette

British Dictionary definitions for roomette

roomette
/ (ruːˈmɛt, rʊˈmɛt) /

noun

US and Canadian a self-contained compartment in a railway sleeping car