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.

As for actually sleeping on the Chill Hybrid mattress, this came much easier. I was happy to find that Cocoon by Sealy's “perfect blend of soft and firm” description was pretty accurate.

Despite the effort to appease the FTC, Tempur Sealy's $4 billion acquisition of Mattress Firm still headed to court. Editor's note: Through the end of the year, we're taking a look back on the ...