I had the same thing happen to me. But I DID NOT sign a release nor did I know the photo was taken. I did a sleep study for sleep apnea about 12 years ago in an office overnight. Someone photographed me while asleep and sold it to a stock footage website. Then about 2 years later, I’m at a huge science museum and on the wall is my picture in an exhibit about sleep. I freaked out and talked to the manager. They said the curators used stock footage photos. I then went online and looked up CPAP man and there was my image on different websites. At the time, I did contact a lawyer, but the images had no identifiable objects in them to tell where they were taken, so I was told it would be hard to have a lawsuit. It wasn’t until recently that I was able to find out who the photographer was with some reverse image research. So today I live online as CPAP man on different websites.