Here are two Hotels commonly used for visitors to Tor Vergata:
1. 'HOTEL JULIA', Via Rasella (near Piazza Barberini), tel. 06-4881637 from "Termini" take metro A, direction "Battistini", exit at "Barberini".
2. 'HOTEL MARGUTTA', Via Laurina (near Piazza del Popolo), tel. 06-3221046 from "Termini" take metro A, direction "Battistini", exit at "Spagna".
Here is a useful link for short-term accommodations in Rome. We also suggest using websites like www.booking.com making sure that the hotel chosen is close to the Metro line A.