Crystli 12" King Memory Foam Mattress Hybrid Bed Mattress with Wrapped Innersprings Medium Firm Bed-in-a-Box Pressure Relieving Supportive CertiPUR-US Certified King Mattress

Quiet individual pocket spring:Each spring is installed in a non-woven sleeve and operates independently without interfering with each other,Two people sleeping in the same bed seem to be in different quiet worlds Innerspring and ventilated memory foam increase airflow, regulate to your body temperature Combination of 3-zone independent pocketed coils and memory foam