Mattress Mack' places largest mobile wager of all-time
Mattress Mack' bets $4.5m on Bengals
Mattress hit on his head?: 'Mattress Mack' places record-breaking
Jim 'Mattress Mack' McIngvale backs Bengals to beat Rams in Super
Texas salesman bets $4.5M on Bengals to win Super Bowl