Same here. the arlington plus mattress was sold to me as the heavenly bed.
when I realised my mistake, the Ackerman & Smith people denied ever having said that the Arlington Plus is the renamed heavenly bed. Of course my invoice did not mention Heavenly bed anywhere either.
After a lot of discussions, I was promised an alternative mattress the "Thomson bay".
Of course only after payment of an additional 750 Dollars, on top of the initial 2100 I paid for Arlington.
I declined and finally I received the mattress without additional payment.
Joke of it all - the Thompson bay is worse than Arlington Plus. I gave up and went for Slumberland
My advice: If you hear the name Ackerman and Smith - start running.
My lawyer is handling the case of misrepresentation.