Hello!
I know there is a Towneplace Suites (by Marriott)down the block from DL. I have stayed at this type of hotel before. Has the kitchen etc but does not have laundry in the room. You can check them out by going to Marriott's website and looking under their other brands (which include Residence Inn etc.) Not sure how far it is from DL but I do know it is not a Good neighbor hotel. Hoping someone else will be able to give you other suggestions!