Saturday, September 17, 2022 FREE Mattress Drop-Off Event for City of Richmond Residents – One Day Only! September 12, 2022 Email Have a few mattressess around? Not able to attend the HHW/Mattress Collection Events this summer? The City of Richmond is offering a FREE drop-off Mattress Collection Event for Richmond residents only. If you cannot make this event, click here to find out more information.