With eye pillows, it’s all about the weight on the eyes. Having weight on your eyes will help ease a headache and migraine and it’s what is very effective for sore eyes too. This is why you don’t need to heat or cool your eye pillow as it will work very well just at room temperature.
The eye pillow is also great for helping you relax and get to sleep as the weight on your eyes helps to tell your brain to stop looking for stimulus through the eyes (even though they are closed!) and this, in turn, slows a racing mind that is thinking about all the events of the day and helps you ease off into sleep.