Hi drog,
Both items would be using good quality materials.
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 Washington, DC area (which has some overlap with the Baltimore list) are listed in post #2 here, just in case you missed a few of these before.
No worries 
, and no need to correct unless you want to (which I see you already did).
Phoenix