Sunderland maintained their push for the top spots and added to Luton's woes with a 2-0 victory at the Stadium of Light in the Sky Bet Championship.
Enzo Le Fee put the Black Cats ahead early on, scoring his first goal for the club, before Wilson Isidor doubled the lead in the second half.
Sunderland's unbeaten home record in the Championship this season remains intact, keeping the pressure on the teams at the top of the table.
Meanwhile, Luton dropped to the bottom of the standings after going nine league games without a win, increasing the risk of consecutive relegations.
Both sides made changes to their starting line-ups, with Dan Ballard and Jobe Bellingham coming in for Sunderland, while Zack Nelson and Millenic Alli featured for the visitors.
The hosts threatened early on as Patrick Roberts set up Isidor, who narrowly missed the target with his shot just outside the box.
Le Fee broke the deadlock in the 13th minute with a well-placed strike after a precise pass from Trai Hume.
Sunderland dominated possession, exploiting gaps in Luton's midfield to create dangerous opportunities in the attacking third.
Luton had a brief moment of danger when Carlton Morris's header was saved by the Sunderland goalkeeper and Alli missed a chance from close range due to an offside decision.
Isidor sealed the win in the 58th minute, finishing off a move initiated by Le Fee's cross for his 11th goal of the Championship campaign.
Luton attempted to respond with long-range efforts, with Jacob Brown firing over the crossbar, but Sunderland remained in control.
Roberts came close to extending the lead, hitting the post with a powerful shot, as Sunderland closed out a comfortable victory with Hume and Bellingham also going close late on.