Reimagined upgrade of the former popular Gel Lux series, the Gel-Max series of memory foam mattresses shares similar comfort features, along with the gel layer. However, weve added a few design improvements to take this mattress to the next level! 2 top layer of soft gel infused 4 lb cooling memory foam. 2 of 3 lb density memory foam middle layer. 2 Comfort Core. 6 of high resilient 2.0 lb density foam base. Zip off, removable, anti-microbial luxury cover. Open cell soft memory foam.