The concave shape of True Response Contour Memory Foam pillow makes this pillow ideal for extra neck support. This Serta pillow containing Outlast® technology will keep you cool and supported all night long. Serta bedding products using Outlast® technology balance the temperature under the covers by absorbing heat when it gets too warm, and releasing it back when you cool down. These Thermocules™ keep the temperature and humidity within your bed in the optimum range for a restful sleep.