🛌 Sleep Smart, Live Well! Unbox and unwind—watch your mattress expand in real-time for instant comfort. Spacious dimensions (80 x 60 inches) provide ample space for couples or solo dreamers. Rest easy knowing your mattress is CertiPur-US certified for a healthier sleep environment. Experience the perfect blend of comfort and support with a medium feel that adapts to your body. Stay refreshed all night long with innovative CopperChill technology that regulates temperature. Bed in a box CopperChill tech 12" height The Sealy Hybrid Bed in a Box combines a 12-inch medium feel with advanced CopperChill technology for optimal temperature regulation. Weighing 70 pounds and measuring 80 x 60 inches, this CertiPur-US certified mattress is designed for easy setup and ultimate comfort, making it the perfect addition to any modern bedroom.