I offer you a modern room with private bathroom in a penthouse apartment on a 7th floor in Frankfurt-Bockenheim. I am happy to share kitchen, living room etc. with you. Help yourself breakfast is included in the rate.
A tram/bus stop is 200m from the apartment. A ride to the fair grounds takes only 5-10 min; the banking district is reached in about 15 min. An alternative to public transport: A bike rental station is located just outside the apartment complex.