The Comfort Inn and Suites hotel is located near TR Hughes Ball Park, Mid Rivers Mall and Wentzville Crossings Expo and Convention Center. We are one of O'Fallon's newest hotels and proudly feature whirlpool suites, free deluxe continental breakfast and a heated indoor pool. Pet charge of 10.00 a night per pet. Check location carefully because O'Fallon Illinois and O'Fallon Missouri can be easily confused.