The former Fox New host believes that some sort of entity physically attacked him while he was in bed.
Carlson, who is certainly no stranger to controversy, made the claim while speaking to John Heers of the non-profit First Things Foundation for an upcoming documentary entitled Christianities?
"In my bed at night.... I got attacked while I was asleep with my wife and four dogs and mauled, physically mauled," Carlson recalled.
"[I was] totally confused, I woke up, and I couldn't breathe, and I thought I was going to suffocate."
He went on to explain that his attacker had been a "demon" that "left claw marks" on his sides.
"I walked around outside and then I walked in and my wife and dogs had not woken up," he said.
"And they're very light sleepers. And then I had these terrible pains on my rib cage and on my shoulder, and I was just in my boxer shorts and I went and flipped on the light in the bathroom, and I had four claw marks on either side underneath my arms and on my left shoulder."
"And they're bleeding."
The attack, which occurred around one-and-a-half years ago, was described by Carlson as a "transformative experience" and left him with an "intense desire to read the Bible".
Exactly what it was that attacked him that night, however, remains unclear.