A top-of-the-line mattress, the Serta Perfect Sleeper Renewed Relief 12" Plush Hybrid Mattress-In-A-Box delivers 12 inches of pressure-relieving comfort and support with a plush feel. HexCloud Gel Memory Foam has Deep Reaction Memory Foam laid on top, for a supportive, cradling coil system. Plus, antimicrobial* mattress protection keeps your mattress fresh and clean from odor causing bacteria. You can now have luxury delivered to your door in a convenient carton and experience the restorative sleep you’ve always wanted.  *This product does not protect users against bacteria, viruses, germs or other disease organisms.