CERN hostel
Link: https://smb-dep.web.cern.ch/fr/CERN_Housing/CERN_Hotel_BookNow
Email address: Cern.Hostel@cern.ch
The CERN hostel is located on the main CERN campus in Meyrin. The hostel website provides some general information.
Hotels in the area:
https://smb-dep.web.cern.ch/en/content/hotels-and-apartment-hotels-local-area
Please note that CERN will not be reimbursing accommodation or travel expenses.