The support base is made of foam, whereas the Sealy Posturepedic Hybrid mattress has a coil base. The GravityLux's cover has a type of pillow top design that the Sealy Posturepedic Hybrid mattress ...

We often find pocketed coils as a support base help the longevity of the mattress over just a foam support base. The reinforced perimeter will help as well. Who is the Sealy Posturepedic Hybrid ...

As well as mattresses, Sealy ... ‘Posturepedic’ system. This specialised manufacturing method is based on springs that are squared off at the top and bottom, and connected via a coil that ...