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Sports gambler Jim "Mattress Mack" McIngvale has placed over $3 million in bets on the TCU Horned Frogs to win next Monday's College Football Playoff National Championship game against the Georgia Bulldogs, according to a report by Darren Rovell of Action Network.

Mattress Mack placed $2.13 million on the TCU moneyline, betting $1.5 million on DraftKings at +370, $500,000 on Caesars Sportsbook at +400 and $130,000 on WynnBet at +380.

In addition, he has also wagered an additional $1 million on TCU to cover a 13-point spread at a -110 vig.

Should McIngvale's bets be successful, he stands to earn $8 million on his wagers.

McIngvale, the owner of Gallery Furniture in the Houston area, makes his national championship bet after a major coup this past fall when he earned a record $75 million payday after successfully placing $10 million in bets on the Houston Astros to win the World Series. McIngvale also won $15 million last year by betting on Kansas to win the NCAA Tournament in men's basketball.

McIngvale's bet on TCU is an ambitious one, as the Horned Frogs have made an improbable run to the title game that included a 51-45 upset of Michigan in the Fiesta Bowl. They must now try to surpass the heavily-favored Bulldogs, who are looking to become the first repeat national champions since Alabama in 2011 and 2012.

Georgia opened as 13-point favorites in the national championship game, per Caesars Sportsbook. A national championship would be monumental for TCU, as the program has not claimed a national title since 1938.