Hi cheapseats,
Welcome to the Mattress Forum!
I know you’ve already seen it (but for others looking)…subject to first confirming that any retailer or manufacturer on the list that you wish to visit is completely transparent (see this article ) and to making sure that any mattress you are considering meets the quality/value guidelines here … the better options or possibilities I’m aware of in and around the Northern VA/Washington, DC list are listed here.
If there are any particular businesses in which you have an interest, you may use the forum search tool here to see if anyone has commented upon their experience with that business.
Feel free to post back with any specific questions you may have.
Phoenix