Dear Guest, The Residence Inn by Marriott Warrenville is pleased to offer the special for Northwestern Medicine Proton Center. At Residence Inn by Marriott® we provide spaces and experiences that allow you to travel like you live. Enjoy a variety of amenities including complimentary breakfast and Wi-Fi. Offering 50% more space than traditional hotel rooms. Bring along your furry friends; our hotel suites are pet friendly. Prepare meals in full kitchens equipped with cookware and appliances, in every guest suite. Get comfortable with our plush Marriott bedding and a 40-inch flat screen TV with free HBO. Our Hotel is 100% smoke-free. Cancellation must be received by 2 p.m., 1 day prior to day of arrival or will result in a penalty of 1 night's room plus tax. We look forward to welcome you to our hotel. Marriott Residence Inn in Warrenville Team