If you need an accommodation, we can recommend the following Hostels and low-budget Hotels in Jena. Of course, you should inform yourself about additional and perhaps even cheaper accommodation options as soon as possible and independently:
Weimar: If you don't mind taking the train to Jena in the morning and evening, Weimar also offers some nice and affordable hostels.
If you need help or you have any further questions please send an e-mail.