Before the Internet (so I know I didn't get it from Amazon) I had something called a Brain Machine. You wore it like a pair of glasses and it flashed lights onto your closed eyelids - different pulsing for various states you wished to achieve. I remember alpha waves for relaxation. It was wonderful and I'd use it for 20 mins when I was tired during the day; it was really refreshing. It vanished during a burglary and I've been yearning for another one ever since. Off and on, for decades. The yearning is upon me now and so I'm asking you all - did you ever have anything like this? Does anyone know where I can get one? I've googled and no luck. Perhaps they are called something else now.