Peter DeBoer is always thinking. Especially the night before a Game 7. It's just that arguably the greatest do-or-die coach in North American sports history is thinking more about what movie he's going to watch rather than how he's going to remain undefeated in another Game 7.
Anyone who thinks that the night before a Game 7 consists of DeBoer drinking a sixth cup of coffee while he and his assistants are reviewing game film is mistaken. That process started well before they even reached that point, with the strong reality that it likely started days before they even played Game 1.