Originally Posted by living20057
The megabus also stops at Bethesda, which may get you closer to Silver Spring.
Bethesda is physically closer, at least by Metro or Montgomery bus (by Metro rail they'd have to go through downtown DC, and pass by Union Station, so it'd actually be further). The Megabus site shows no stop in Bethesda, at least not for busses from New York, but if they do stop there it might be worth at least looking into. There are local busses from Bethesda directly to SS, but whether they'd run on a Sunday as early as OP would arrive is another question (assuming the Megabus stops there before the 5:45 a.m. arrival in downtown DC). Personally, I'd just take one of Megabus's daytime busses from NYC rather than one leaving after 1 a.m. and arriving in DC before dawn, but OP has their reasons for their choice, I'm sure.