Convicted murderer Bryan Kohberger has complained that he is “extremely annoyed” and losing sleep at the maximum security prison where he is currently held — due to inmates who continuously shout through vents into his cell in what he describes as a “relentless” campaign of taunting, according to a report.

Kohberger, who received four life sentences last month for the murder of four University of Idaho students, was moved from jail to the only maximum security prison in the state and is currently in solitary confinement.

The inmates at Idaho Maximum Security Institution in Kuna have been targeting the convicted criminology student — taking turns yelling into the vent that connects to his cell during most hours of the day, a law enforcement source informed the Daily Mail.

Kohberger, 28, has made multiple complaints to prison guards that he’s been unable to sleep, according to Chris McDonough, a retired homicide detective who works for the Cold Case Foundation.

“It’s driving him crazy,” McDonough told the outlet. “The inmates are tormenting him at night and almost all hours of the day — taunting him through the vents in his cell.”

“They are literally getting up into the grate and yelling at him. The inmates are taking turns doing it. It’s relentless,” McDonough continued. “He’s extremely annoyed and frustrated. He’s complaining to the authorities that he can’t sleep because of them.”

Kohberger is being housed in the prison’s restricted unit in the facility’s J block, away from the general prison population.

He’s kept in a cell by himself at all times, except for one-hour a day when he’s let into “the cage” outside for recreation, while he wears restraints. And he’s only allotted one shower every other day.

The high-profile nature of Kohberger’s case and the fact he copped to such abhorrent crimes makes him a target for other inmates who would want to harm him “just to make a name for themselves,” McDonough explained.

And since the other inmates don’t pose a physical threat to Kohberger while he’s in solitary, prison staff aren’t likely to intervene, the former cop said.

Still, as attention moves away from Kohberger over time, prison staff may eventually be willing to move him back to the general population, McDonough explained.

At the jail that Kohberger was previously kept in while he awaited trial, other defendants said he did unusual things like spending hours on the phone with his mom MaryAnn, washing his hands compulsively, taking showers upwards of an hour long and staying awake at night only to nap during the day.

Once, he confronted another defendant who yelled “you suck” at a sports player on the TV because he thought the man was insulting Kohberger and his mom as they spoke on the phone.

Last month, Kohberger took a surprise plea deal just weeks before his highly anticipated trial was set to kick off. The deal saw him skirt the possibility of facing the death penalty, enraging some of the families of his victims and leaving loved ones with no explanation for why he committed the heinous murders.

He admitted to killing Xana Kernodle, Kaylee Goncalves, Madison Mogen, and Ethan Chapin on Nov. 13, 2022 in their off-campus house in Moscow.