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.

Though Sealy offers a variety of mattresses, we decided to keep it simple and test its flagship product, the Sealy Posturepedic Hybrid mattress ... it took me back to my high school days.

As for actually sleeping on the Chill Hybrid mattress, this came much easier. I was happy to find that Cocoon by Sealy's “perfect ... technology at a price point that won’t make you short ...