Yes, complimentary breakfast is available at Residence Inn by Marriott Washington, DC Downtown to hotel guests during their stay.
Free Full American Breakfast is available at Residence Inn by Marriott Washington, DC Downtown during the following hours: Monday-Friday 6:00 - 9:00 AM, Saturday-Sunday 7:00 - 10:00 AM.
Breakfast is also available onsite at Complimentary Breakfast for a fee.