I received a replacement for this mattress. The first one I had was model number 603565; The bed ended up sagging a lot in 4 months so they replaced it, but the model number I received is 503573. It looks the same, but feels different than the original one when I first bought it. Any ideas?
According to the warranty...something you can read on the warranty card...The manufacturer will replace your mattress with something of equal quality or better, considering that models and specs change over time. Rarely will a warranty claim end up with you getting exactly what you had.
Warranty claims are handled through your retailer. This is where most of the problems start. The manufacturer won't "pull a fast one", but many retailers will...especially the large chains that rely on mass media marketing for their business, as opposed to relying on your recommendation to friends and family.
The model numbers mean nothing to me. It's an internal number for Sealy.
Here are links to other people's warranty issues and to the warranty Sealy offers. I thought they might be helpful to you.