Hi diggis_tennis,
some of the better options and possibilities I’m aware of in the Raleigh/Durham area are listed in post #6 here.
The adjustable bed thread here may be helpful with an adjustable bed purchase and has some good sources you can use for a “value reference”. I would also consider buying an adjustable bed separately from your mattress unless the retailer or manufacturer you are dealing with has equivalent value for the adjustable you are most interested in.
Phoenix