Dunn scored 24 points for his fourth consecutive 20-point game, Acy had 14 points and 10 rebounds for his third double-double of the season and the Bears beat Bethune-Cookman 83-39 on Wednesday night in their first game in 13 days.
"It had been a while since we'd played, and you could tell that I was kind of sluggish. My first couple shots were bad, I could tell when they left my hand," Dunn said. "Being off a week or two kind of took a little bit from us."
Dunn had 16 points by halftime, when Baylor (7-0) led 38-22. The senior guard shot 6-for-11 with four 3-pointers.
The Bears set a school record with their 12th consecutive home victory. Their last loss in the Ferrell Center was 76-74 to then-No. 11 Kansas State last Jan. 26, snapping what was then a record 11-game home winning streak.
Baylor wrapped up its undefeated season-opening, seven-game homestand by winning every game by at least 10 points. The Bears had last played Dec. 2, a victory over Arizona State before final exams.
Freshman Perry Jones had 15 points and nine rebounds for Baylor, scoring all of his points and grabbing seven rebounds after halftime.
"I just wasn't as comfortable in the first half after having these days off. I'm not used to that. I just had to get the feel of the game back," Jones said. "In the first half, I had my mind set on scoring but I had trouble getting into the flow of the game. After this break we had, I knew I was going to be a little sluggish. But after I got the feel, I was more comfortable."
J'mision Morgan had 11 points for Baylor while A.J. Walton had 10 assists with only one turnover in 35 minutes.
C.J. Reed had 13 points to lead Bethune-Cookman (5-6), which shot only 31 percent (15 of 48). Alexander Starling had 10 of the Wildcats' 24 rebounds.
"We were beaten by a much, much better team," coach Clifford Lee said. "They flexed their muscle. They're athletic, long and have a lot of shooters."
"When you get beat that bad, you don't have any teaching points," he said. "That's why I'm out of the locker room so quick. We'll regroup and you'll see a much better team against Akron."
C.J. Reed, the coach's son and the Mid-Eastern Athletic Conference's leading scorer at 19.2 points a game, didn't start. He was held out the first 5 minutes for an unspecified violation of team rules.
Reed's 3-pointer 3 1/2 minutes into the second half moved him past his father into 12th place on the school's career scoring list.
The Bears went ahead to stay when Acy's dunk only 1:34 into the game made it 5-4. It was nearly another 2 minutes before somebody scored again, a jumper by Acy.
Baylor did most of its first-half scoring inside, not hitting from outside until Dunn rattled in a 3-pointer from the top of the key with 8 1/2 minutes left in the first half. The Bears already had four dunks and three follow-up shots by then.
"In the first half they really pressured us, and it was a close game. After the break, this game really helped us get back in our groove," Walton said. "Even though we were practicing, it's still nothing like a game. Just getting a chance to play against another team, a decent team, that always helps boost how we play and the things we do."
Walton had an assist on Jones' dunk that started a 10-0 run in the second half that stretched the lead to 60-32.
Baylor had a 42-24 rebound edge and only six turnovers while shooting 54 percent (28 of 52) from the field.
The Bears' next game is Saturday against Gonzaga at the American Airlines Center in Dallas. They don't play at home again until Jan. 2 against Texas Southern, the first of two home games in three days to wrap up their non-conference schedule.