I'm spoiled. There's a small, local mattress factory in the next town to the north, not more than 10 miles from my house. The last two mattresses we bought, my wife and I went to the factory, sat down with the owner/CEO, told him what we wanted and what price range we wanted to be in, then he took us out into the factory, showed us what we could get in the price range we wanted, and we signed an order. About ten days later their truck delivered the new mattress, and their guys took the old one.
One time we bought the mattress and base together, the other time we bought just the mattress.