A pillow measurement device and a method of using it are provided. Certain embodiments of the device include a first leg, a second leg, a first movable portion slidably affixed to the second leg, a means for affixing the first movable portion to the second leg, and a second movable portion. One or more of these components may have measurement indicia imprinted on them. The device can be used to measure various anatomical parts of a person, such as head width, neck width, shoulder width, cervical length and cervical depth. Measurements taken using the device may be used to custom build a pillow for a person.