I tried to use the product and it hurt my ears to much and left a red mark that brused my ears.  I just think that there a waste of money and no one should waste their money on them. And every time i put on this product i can't sleep.  if i want to have darkness in my pressance i'll just turn lights off and close blinds. I'll never spend my money on this product again. If any one does then their stupid. —… read full review »