2, 3 inches of ventilated gel memory foam adds softness and pressure-relieving comfort to your mattress Special memory foam formula is extremely soft, airy and responsive Ventilated design improves airflow for a more comfortable sleep climate Memory foam is infused with a plush gel material that captures heat to control temperature Available in California King, King, Queen, Full XL, Full, Twin XL and Twin sizes 3 Year manufacturer warranty Cooling Gel Memory Foam creates a comfortable sleep surface conforming to the curves of the body to create an individualized experience that aligns the spine and eliminates pressure points. This mattress topper features either 2, 3, or 4 inches of a specialized memory foam formula that is incredibly plush, airy, and responsive. Gel Infused for Temperature Control, this plush memory foam topper regulates temperature for improved comfort. The gel material captures and distributes body heat to prevent overheating. The ventilated design improves airflow. This comfortable sleep surface is not only soft, but also breathable. Hundreds of evenly sized and spaced ventilation holes allow air to flow through the mattress topper for a more comfortable climate.