Sleeping Bag Accomodation Sleeping bag accomodation at the school's gym is available free of charge for the nights from Thursday through Sunday. Please bring your own sleeping bag and mattress and follow the house rules. Other accommodations, please book them for yourself: Wombat's Mariahilferstraße Wombat's the base near Westbahnhof Wombat's Wienzeile Wombat's Naschmarkt near metro line U1 station Karlsplatz