Watch a Hair-Raising Clip from Sleep Paralysis Doc ‘The Nightmare’

Don't sleep on this one! The Nightmare is a terrifying documentary about sleep paralysis that opens here on Friday with director Rodney Ascher in person for a Q&A. You may remember Ascher from his previous film Room 237, which dealt with conspiracy theories about Stanley Kubrick's The Shining and had a theatrical run here in 2013.

To get you excited, we've got an exclusive clip from the film and a hair-raising trailer that's sure to keep you up at night. Enjoy... if you dare!