Joseph Conrad, 22, of the 2300 block of Hastings Drive, was sentenced after pleading guilty to a felony aggravated domestic battery charge, according to Will County state's attorney's office spokesman Charles Pelkie.
Conrad originally also faced an attempted murder charge related to the Dec. 5, 2011, incident, Pelkie said.
Conrad called police at 2:30 p.m. that day and told officers someone broke into the family's residence, police said in 2011. He was taken to the police station because of inconsistencies in his statements, according to officials.
At the station, Conrad admitted attacking his mother that morning before leaving to go about "his normal business," according to police.
Conrad told police he later returned home, broke a window from the outside to fake a break-in and called 911, police said.
The victim underwent surgery to relieve brain swelling and suffered severe face, nose and hand injuries, according to police.
Pelkie said Conrad's conviction was based on "a largely circumstantial case."
"We had essentially a victim in this case who cannot remember at all the incidents leading up to the battery," Pelkie said.