The right pillow will help, but also figuring out your own neck helps. Some people need their head cranked up quite high, and this relates also to how broad your shoulders are. You need a certain amount of pillow to keep your spine straight and in line with your neck. Some people can only sleep on an almost flat pillow. What might be a fine pillow for some other people might be a killer for you. Some pillows can be stacked up or flattened out within limits to accommodate your particular spine and neck. Likewise, some like a fluffy pillow, and others like a firmer one. You may have to try a few to find one just right.