"You don't want to say it's different than any other game, but they are, that's the way it is," Sveum said of the Interleague matchup.
The Cubs play host to the White Sox at Wrigley Field for three games, starting Friday, and the two teams will meet again at U.S. Cellular Field from June 18-20.
"Everything's more magnified -- the fans are into it, they're going to stay longer," Sveum said. "It's a whole different atmosphere than any other game. It's like being in the playoffs but you're not.
"To me, you feel like it's Christmas morning. You can't wait until that morning comes. I think you get up earlier. It's different, and it's not just any other game."