Disgusting Service from Sealy Posturepaedic

Good Day, Having used the Sealy Posturepaedic brand for the past forty odd years, is it unreasonable to expect the same level of quality and service? My husband and I were thrilled to be purchasing a new matttress from a well known furniture company but had to exchange it shortly afterwards, due to a factory fault. We received the replacement and found the Mattress to be really uncomfortable. Restless nights and gravitating towards the edge of the bed. The Alco Plus Mattress is a Pillow Top and looks amazing. It is definitely not what it looks like!! On requesting assistance from the company, I was advised that they only deal with Manufacturing faults and Not "Comfort" problems and referred me to their Warranty Card. Surely a follow up call to a dissatisfied customer or an offer to refund our money so that we can buy a better quality mattress and deal with a company that is concerned with their Clients comfort?? I was under the impression that "Comfort and Service" would be a priority for any company selling Mattresses.