He tried to recall the events surrounding Mrs. Winslow's attack, searching for any detail that might be significant. But nothing stood out. He had been so deeply immersed in his 'sleep' that he hadn't stirred during the attack. In fact, the only thing that finally snapped him back to awareness was the piercing scream that followed.
Although this all took place within the game, the system was designed to make every experience feel as real as possible. While he hadn't truly lost consciousness, the game created the illusion that he had. As a result, he neither felt nor heard anything during the attack, completely immersed in the enforced state of 'unconsciousness.'