I needed to be able to block out all noise and light during my vertigo episodes and this product does the trick. It is comfortable and easy to use and the sounds of nature are very relaxing. I fall asleep soon after I put them on. The sounds last only 30 minutes which is sufficient for their purpose. If anyone suffers from migraines or are sensitive to light and sound, this product will definitely help you. I also appreciate the fact that you can listen to your own music with little difficulty.