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.

Purchase a Sealy Posturepedic Plus Hybrid and you will get two pillows, a sheet set and protector (a $179 Value) for free. Get a 90-night trial, free delivery and a 10-year warranty. Reimagine ...