Sheraton Suites in Old Town.

There's also an Embassy Suites in Friendship Heights.It's steps from the metro (Red Line) & there are plenty of stores & restaurants right there. Plus they have a great free breakfast buffet that runs for several hours in the morning & free cocktails/light snacks in the evening & an indoor pool. I haven't stayed there in a while (I think 2005 was the last time) but it was nice & had great,friendly customer service back then & I believe it's been renovated since .