Your hotel is

Ostdeutsche Sparkassenakademie
Am Luftschiffhafen 1
14471 Potsdam
Phone: +49-331-9070

You can see it in the lower left corner of the map of Potsdam
between the Stadium (Stadion) and the station ``Potsdam Pirschheide''.

The price is 45 Euro per day and 192 Euro per week.