Red Roof Inn is renovating all of their inns nationwide This location now features redesigned rooms with more comfort and added amenities such as T-Mobile wireless Internet access (daily fee may apply). Experience our coffeehouse-style service featuring fresh brewed, ground whole bean coffee. The Princeton Red Roof Inn is conveniently located off of I-295, just 9 miles from Trenton and 5 miles from Princeton University. This Inn is also just seconds away from shopping, restaurants, entertainment and a friendly staff. You must be 21 years of age or older to check-in at this location.