Wes Craven’s classic single-handedly weaponized sleep. The filmography here is defined by the rule: If you fall asleep, you die. Freddy Krueger turned REM cycles into a blood-soaked playground. This film spawned six sequels and a reboot, making it the most commercially successful sleeping-centric horror franchise. For fans of popular videos, the "sleep kill compilations" on YouTube from this series have millions of views.