Ghost doesn't get much sleep, as he normally has nightmares involving his loved ones dying and a lot to do with traumatic things he went through, and not sleeping is how he often tries to avoid it.

But sometimes, he goes too many nights without sleeping and he has to have a nap. Unfortunately, this time, he would wake up frozen in his bed. Something not human was in his room. This was no nightmare, this was sleep paralysis.

"What the fuck..."