Syrian refugee needs place to sleep at in Karlsruhe‏

Hello everyone,
I have a question: a friend of mine, a refugee from Syria, has to be in Karlsruhe, Germany, on Wednesday for an appointment that concerns his asylum application. He has no place to sleep and in the Landesaufnahmestelle für Flüchtlinge (the refugee camp) in Karlsruhe they only gave him bed sheets but no bed, no place to sleep at. It is too cold to sleep on the streets. He will return to Karlsruhe on October 29th and has his last important appointment there on November 6th. Does anyone know where he can stay during that time? Any advice? 
Thank you.
In solidarity,
Jackie
jackiemandres@gmail.com