Mattress Mack': Houston Astros superfan has wagered $10 million to
Mattress Mack' wins $75M as Astros claim World Series title
Who is big-time Kentucky Derby bettor 'Mattress Mack'?
Jim McIngvale - Wikipedia
Mattress Mack stands to win $75 million if the Houston Astros win
Mattress Mack makes craziest bet ever: He can win 75 million
Mattress Mack Set to Wager About $4M at Kentucky Derby - BloodHorse
How is Mattress Mack so rich & what horse is he betting on
Who is this 'Mattress Mack,' and why does he do what he does