Wiktionary
n. A room, especially in a hotel, that has one double bed.
Wikipedia
Double Room is a web-based biannual literary publication founded in 2002 by Peter Connors and Michael Neff to explore the intersection of prose poetry with flash fiction. Double Room publishes work by popular poets and writers, as well as talented newcomers. The journal is edited by Mark Tursi, with assistance from Jamey Dunham, Erin Gay, and Joyelle McSweeney. Michael Neff is the publisher.
Usage examples of "double room".
To join Miss Galinda of the Arduennas in a double room-shall I invite the Thropp Third Descending, of Nest Hardings, Elphaba?
Armed with maps, guidebooks, and copious directions, Dieter and Tina drove into the center of Dublin and checked into a double room at the Royal Dublin Hotel on O'Connell Street.
They went first to a small hotel in St James's, where Pascal was known and a double room had been booked.