The present invention relates to devices and methods that use cooling and/or heating systems in pillows. More specifically, the present disclosure relates to systems that can constantly transport a fluid throughout a pillow in order to keep the fluid at a desired temperature. In order to start the cooling/heating process, a cooling/heating device can use fluid from a tank or reservoir that can be cooled/heated by a radiator. This fluid can then exit the system, be filtered through a hose or line, and then enter the pillow itself. After flowing through the entire pillow, the fluid can be transported out of the pillow and back to the cooling/heating device. By utilizing such a design, the cooling/heating system can keep the fluid moving throughout the pillow and at a desired temperature. As such, the pillow can also maintain a corresponding desired temperature.
