Hi Sosey,
All of the Brooklyn bedding mattresses are only sold online but their factory is in Phoenix and you can call them and arrange an appointment for them to meet you there if you want to test them in person.
As you can see in post #4 here … a couple of our other members are also in Phoenix.
If you want to test mattresses locally in Baltimore then some of the better options and possibilities I’m aware of there are in post #2 here.
Phoenix