Somniphobia

Somniphobia is a Five Nights at Freddy's-inspired point-and-click psychological survival horror video game played by Markiplier.

Game information
A girl named Susan suffers from reoccurring nightmares. You're in control on her dreams: it is imperative that you don't let Susan wake up, since if she does, she'll have the same nightmare again. Peeking down dark corridors, crawling through claustrophobic vents and walking around a massive room without light, you will have to stay away from the nightmarish figments of her imagination. If anything gets too close, Susan will wake up.

Episode

 * 3 SCARY GAMES #68

Trivia

 * Somniphobia is the fear of sleep.