It’s understandable if you’ve never heard of a mattress with a top panel that unzips. After all, it’s quite an innovation—and one that other mattress stores don’t offer their customers. Under the zippered panel, there are a variety of foam insert options in varying firmness: poly foam, blended Talalay latex, Natural Talalay latex or memory foam. All this rests on the conforming, stable support of a pocketed coil innerspring. This pocketed coil unit is surrounded by a firm foam encasement for firm support and increased sleeping area across the surface of the bed.