HYBRID ESSENCE HY2 FIRM MATTRESS - 10 YR WARRANTY 960 Pocketed Coil with Active Guard Perimeter Edge Matelassé Stretch Knit Cover 1in Super Firm Quilt 1in Super Firm Foam 10 Year Warranty The Hybrid Essence Firm features our heavy duty 960 pocketed coil unit, which is the most durable pocketed coil unit on the market. We use firm innerpads, firm foam and firm quilting to give it the rigidity that you are looking for. This mattress is very firm. When customers ask you about firm, this is the go to for those on a budget.