The Bed Boss has put together a reasonably thick, very supportive and cooling memory foam mattress with the Heavenly that has become a favorite of nearly everyone who comes into our showroom seeking a memory foam product. True next generation cooling gel memory foam makes this one a little better than your average mattress. In terms of firmness (on a 1-10 scale), this high-rated Bed Boss model is around a 7 or an 8; making it a firm, supportive memory foam option. Also, the Heavenly features a Jacquard stitching cover.