Pretty Little Nightmare- A Nightmare x Reader

After the disappearance of your sister Cassidy at the age of 5, memories from Freddy Fazbear's still haunt you.
When you move into a house that had once been owned by a family, you start suffering from horrific nightmares and what seem to be just hallucinations.
But keep your eye on the clock, cause when 4 a.m. rolls around, you best be prepared for an unexpected dream.