The man they call "Mattress Mac" has to pay up once again now that the Houston Astros are MLB champs -- to the tune of more than $10 million.

Houston business mogul Jim McIngvale, who owns Gallery Furniture, told ESPN he'll be giving back more than $10 million in purchases made from when he announced in May that he would rebate fans who spent more than $3,000 on mattresses and beds if the team won it all.

"I'm happy for this great city and for the Astros," McIngvale said, minutes after the Astros won the World Series title on Wednesday night.

In past promotions, McIngvale has rolled the dice, but this time he decided to protect himself.