The Nectar Lush Mattress is a nationally recognized bed in a box. Compared to “sleeping on a cloud,” the Nectar mattress features materials and fabric technology that will provide optimal levels of firmness, coolness, breathability, and comfort. The Coolflow technology is a higher density, breathable material that provides superior pressure relief thanks to its open cell structure. AquaCool is applied to the center third of the memory foam, allowing you to stay cool and remain in a deeper sleep longer. Energex retains all of the advantages of visco without the slow recovery, and excels at providing “bounce” and mobility.