Wake up feeling rested and refreshed with NRG 40’s luxe feel and exclusive 3-Zoned Active NRG Layer that provides optimum spinal alignment and zonal back support.Featuring our specially engineered QUBE Cell Technology Layer with active grooves, this truly resilient mattress stays fresh and clean for long due to ample air circulation. The QUBE structure of memory foam mattress also restricts motion transfer from one side of the mattress to the other, resulting in uninterrupted sleep.