A headrest pillow is a type of pillow designed to be used in a car. It is made of a soft, comfortable material and is designed to support your head and neck. Some people use headrest pillows to sleep while others use them to relieve the pain of cervical spondylosis or other neck injuries. There are many different types of headrest pillows. The three main types include flat pillow, soft pillow and concave pillow. When you are driving in a car, your headrest is there to provide support and cushioning. The so-called headrest pillow for the car. Learn more about “What Is A Headrest Pillow, And What Would You Want To Buy One?”