Mattress Mack's social media posts gained attention — not all of it positive — after he acted in commercials using a persona called "Gangster Mack" to promote a new sale at his company.

"How does it make you feel?" Soothing and sleepy, the narrator's voice barely reaches above a whisper, the exact opposite of Mattress Mack's hyper-caffeinated, high-volume late-night pitches of yore.

Houston’s Jim "Mattress Mack" McIngvale held a rally for the presidential candidate at his flagship store off Interstate 45 just hours before Vice President Kamala Harris held her own in Houston ...