On July 17, 2014 Kurt Hinrichs, of Gladstone, Mo., went to bed early. As often happens, he woke in the middle of the night. When he tried to get out of bed, he crashed to the floor, which woke his wife, Alice.
"At first it was like, 'What's going on?' " Alice says. "Are you dreaming? Are you sleepwalking?"
Kurt wasn't responding to anything Alice asked him, so she called 911. "I [was] thinking, 'this is a nightmare,' " Kurt says.