The comfort of your mattress is determined
by the comfort or upholstery layers. These are the layers of material
in a mattress that provide the comfortable surface feel, usually
multiple layers of foam and synthetic fibers
Support
The support of your sleep set comes from
the innerspring unit, or in the case of spring free units, the density
of the latex or foam that makes up the core of the mattress.
Durability
A proper foundation or boxspring will properly
support your mattress and improve the overall durability of your sleep
set.
