Redditor itsjakanator has posted the above image of his bedroom, which looks like it was taken directly from a Five Nights at Freddy's game.
I'm fairly sure one of those doors leads to Narnia, the other one might go to Terabitia but either way, it's the type of room that could very well give children, or even some adults, nightmares. Perhaps one leads to Halloween Town from Tim Burton's The Nightmare Before Christmas, which would be appropriate given that Five Nights at Freddy's 4 is getting extra Halloween content.
Developer Scott Hawthon recently detailed what's going to be included in the free update on October 31st, and revealed that nobody has figured out the story of Five Nights at Freddy's 4 to date. Among the features of the update will be a demo or sneak peak of Cawthon's next project, which he says will not be Five Nights at Freddy's 5.