A week and a half. Sasuke was sure he'd gone longer than that at some point, although he was more liable to take quick catnaps than to deprive his body of rest. He couldn't afford to be performing at anything less than seventy percent capacity at all times.

When the body was overtired, reflexes slowed. And he already channeled more energy than he had into using the mangekyou. Sleep was never a luxury he'd outright denied himself. Until now.

"Just last night." He paused, running his finger around the rim of the cup.