Sealy® Posturepedic is the most recognized mattress brand providing the comfortable sleep for generations. There are 3 lines under Posturepedic Titanium Series. Two of them SS and Dsx offer traditional inter-connected innerspring while the Dsi line offers individually wrapped springs for less disturbing sleeping. D in Dsx and Dsi means that spring works in two stages or as Sealy calls it dual stage conforming support. Sealy markets these springs as made out of Titanium, but they are actually standard steel spring with a miniscule amount of titanium. Some of the models offer CoreSupport™ Center as an extra support in the central third of the mattress. Another main difference among different models is addition of memory foam layer. The foundation used called StayRight Foundation has rubberized top to prevent mattress from sliding off. There are handles on both sides of the mattress for easier manipulation.
There are several softness options available: Firm, Luxury Firm, Plush, Plush Pillow Top, Firm Pillow Top, these will vary in type and thickness of the comfort layers
Some retailers have their "exclusive" collections with minor modification in type and thickness of padding layers. When comparing models always focus on coil type and coil amount, and also presence and thickness of premium materials - memory foam, gel foam, latex. Many retailers will have different names for the same mattress in this line, so you need to focus on an actual line not a single product. To learn more about different names of the same mattress click here.
Luxurious knit cover
with Memory Foam
Posturepedic Titanium SS™ Coil Innerspring - inter-connected springs
SitRight™ Edge System - foam encased
of 1 1/2" or greater
The best deals on some Sealy models are available in Costco warehouses or on Costco.com website. If you don't have a warehouse membership you can try to use their advertised prices for a price match with your local store.