How did Jim Mattress Mack McIngvale get so much money?

Jim 'Mattress Mack' McIngvale wins $75 million as Houston Astros claim World Series title

Jim McIngvale - AKA Mattress Mack - Has $20 Million Riding On The Astros Winning The World Series

Mattress Mack' Shakes Off Losing $9.5 Million Super Bowl Bet After Rams Beat Bengals

Mattress Mack' On Why He Bet A Record $9.5 Million On The Bengals To Win Super Bowl LVI

Mattress Mack stands to win $75 million if the Houston Astros win the World Series - VSiN Exclusive News - News

Mattress Mack Net Worth: Furniture Empire Made Him Millions

Jim McIngvale, Houston's mattress king, bets $3.5 million on Astros - The Washington Post

10 things you may not know about Jim McIngvale

Jim 'Mattress Mack' McIngvale: Business, Bets and Giving Back

Owner of Houston mattress store owes $10 million to thousands of customers who bet for Trump win

How did Jim Mattress Mack McIngvale get so much money?

Jim 'Mattress Mack' McIngvale says first pitch at Astros game canceled due to interference from national competitor

Astros fans petition for Mattress Mack first pitch in Game 6