M3 Performance Mattress-Split King-3.0 - Soft-1.0 - Medium Firm

Say goodbye to one-size-fits-all and hello to the completely customizable mattress! The M3 is the world’s first dual-sided modular mattress with four different comfort levels, empowering you to choose which level is most comfortable for your side of the bed matched with a comfort layer for consistent support. The M3 also features our Air-X® breathable mesh panels for 100% airflow and our instant-cooling Ver-Tex® top cover, making it the best mattress for hot sleepers.