What is one thing to do when your head hurts when you lay down on your pillow?

When your head hurts when you lie down on your pillow, chances are that your spine isn't aligned well. You may be putting too much stress on your neck, or the position of your hands impairs blood flow in some way. One of the best things you can do is to attempt to sleep on your back. It's the best position to keep your organism working as intended as you lie sleeping.