The Shadow Firm Euro Top Mattress by Serta delivers firm, targeted support with cooling comfort for a restorative night’s sleep. Its 1100 3-Zoned coil system with Total Edge® foam encasement provides lasting stability, while 3" of supportive gel foams relieve pressure on shoulders and hips without sacrificing firmness. Enhanced with CoolFeel™ fabric, Serta® Silk Gel Fibre, and breathable gel foams, it helps draw heat away for a cool, refreshing sleep surface. Adjustable base friendly and crafted with CertiPUR-US® certified foams, this mattress combines durability, support, and comfort.