President Donald Trump has some unusual bedtime habits and threw a baffling "fit" when White House staffers messed with his bedding, according to his former biographer.

Author Michael Wolff sat down with Daily Beast’s "Inside Trump’s Head" podcast and revealed the president installed a lock on his bedroom door at the White House, much to the anger of Secret Service agents tasked with protecting him.

“This was a confrontation,” Wolff said. "[They] actually took it off, demanded that it be taken off.”

He recalled another instance where Trump exploded in anger after the White House domestic staff changed his sheets.

“He had a fit,” said Wolff. “What that’s about, I have no idea.”

Wolff compared the Oval Office during Trump's presidency to a "bus station," with aides and staffers dragging in chairs to sit as an audience to his nonstop monologues, and the author told podcast host Joanna Coles that Trump goes on like that right up until the moment his head hits the pillow.

“He’s on the phone, too, I mean, I think until the last possible moment," Wolff said. "He’s talking, talking to somebody."

The president is a notoriously bad listener, and Wolff said his soliloquies go far beyond "gasbaggery."

"This is, there is no breath," Wolff said. “One of the things that when he speaks, what is inside the head comes out of the mouth. So whatever confusion, chaos, churning, past grievances, comes out and it doesn’t stop. So you will sit with him, and you could sit with him for hours, and you will never, ever, ever have a moment to say anything."

White House communications director Steven Cheung responded to Wolff's latest claims with a psychosexual slur.

“Michael Wolff lives in an alternate universe and he completely fabricates lies in order to gain whatever bit of relevancy that he thought he once had,” Cheung said. “In reality, he is a sad, pathetic cuck who is a parasite. Nothing that comes out of his mouth is true.”