Jim McIngvale, also known as Mattress Mack, is an American businessman who has a net worth of $300 million.
He is best known as the owner and operator of the Houston-based Gallery Furniture chain.
Mattress Mack is also known for making very large bets on sports games, particularly on the Houston Astros.
His bets often involve promotions at his stores where customers can receive their money back for recently-purchased mattresses if the Astros win.
He then makes large wagers on the Astros to hedge the cost of the promotion.
For example, leading up to the World Series in 2021 where his Astros were facing the Braves, Mattress Mack wagered $3.45 million spread across a half dozen sports books.