Does anyone know if the Washington Dulles Airport Marriott Concierge Lounge is open beginning Sunday evening through Friday morning?

I am checking into the hotel on Saturday in a Concierge Level room and will be checking out on Monday. Will the Concierge Lounge be open beginning Sunday evening?

Also, do you know if the hotel will provide breakfast for the Sunday morning part of the my stay?

Thank you for all your help and advice.

soccer