I am renting out my small bedroom from time to time cause I am often not in Berlin and this room is not used too much anyways.
Its a great and cheap way for a couple or a single to explore Berlin's hip southeast. The apartment ist located at intersection Weserstraße / Weichselstr. Therefore as soon as you leave the quiet courtyard you will have all the great nightlife of this neighbourhood.
The room has about 9 m² and a double (or single) mattress. A built in desk with a chair and a couch.