Never mind the sleep deprivation Friday afternoon. Buster Posey couldn't believe how hot, humid and suffocatingly still the air felt at Wrigley Field.

"It was as high as I've felt it this year, including Atlanta, Philly and Washington," said Posey, after the Giants' 6-4 loss to the Cubs. "I was probably sweating like crazy."

Did he use the cooling room?

"Cooling room?" Posey said.

Yeah. You know. The little room behind the dugout where you can get a refreshing blast of AC.

"I didn't know about that," Posey said. "Too bad you didn't tell me about that before the game."