The Oracle Medium Euro Top Mattress by Serta delivers tailored comfort with advanced cooling and support. Its 1250 5-Zone Coil System promotes targeted alignment and stability with edge-to-edge encasement, while layers of Silver Gel Memory Foam and GelPLUS contour to relieve pressure on joints. Finished with CoolFeel™ Premier fabric and advanced gel foams, it draws away heat to maintain a refreshing, balanced sleep climate all night long.