Indicates the main composition of the mattress, such as innerspring or memory foam. Some so-called "hybrid" innersprings include one or more levels of foam on top.

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 ...

And with a generous depth of 29cm and a quilted pillow top ... d say Sealy is a dependable, all-round brand that’s behind some first-class mattresses. Take, for example, the Sealy Posturepedic ...