Sonja Mairenn. Mattress. May 01st , 2017.
There are basically three types of Sealy TrueFoam mattress to choose from; the 8 series, 9 series and 11 series - the number is the thickness of the mattress in inches. The 8 series comes with 5" of high-density foam in the core and 3" of memory foam in the top layer. The 9 series comes with 6" of high-density foam in the core and 3" of top layer. What exactly are the benefits of the 9 series over the 8 series I can't really say as both have a 3.5" top layer of memory foam - I don't see how an extra one inch of high-density foam in the core makes the 9 series any better than the 8 series. The 11 series comes with 6" of high-density foam in the core, a 3.5" visco middle layer and 1.5" convoluted visco top layer.
Basically, when you lie down on a coil mattress there is a tension between the coils and the sleeper. The sleeper's weight is pushing down of the coil and the coil is pushing back against the sleeper. Despite some advances in design, with coil springs the sleeper conforms to the shape of the mattress.
My advice is to certainly go ahead and buy a Stearns and Foster mattress, but save your self a lot of money and decline the offer of the boxspring.
The bottom layer is what provides the support. Currently, a Stearns and Foster mattress offers two types of support; innerspring and latex. Whichever you choose, you will be getting the best. The innerspring version contains its 504 Progressive Support Coils that are double offset with 12 3/4 gauge high-carbon steel. They are also twice tempered which helps them retain their shape better and for longer. Latex is becoming popular once again; it's hypoallergenic and conforms to the sleeper's body shape.
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