Emma + Oliver 12" Hybrid Extra Firm Foam and Spring Hybrid Mattress In A Box, King

Emma + Oliver 12" Hybrid Extra Firm Foam and Spring Hybrid Mattress In A Box, King Compatible with slatted and platform beds, metal grids, & adjustable bed frames Hybrid design combines high-density foam & a motion reducing pocket spring core Comfortable knitted fabric covering provides breathability and softness Relieves pressure points for a full, undisturbed sleep CertiPUR-US Certified foam is free from harmful substances Please allow 48 to 72 hours for your mattress to fully expand King size mattress: 76" W x 80" D x 12" H Product Size: 76"W x 80"D x 12"H