Toz took a nap once he realized there was nothing he could do to help his clone recover faster. And since he needed his clone to be as healthy as possible for his idea to show the most chance of success, he decided to let it recover in peace. Not to mention how resting would also help restore his broken mind quicker and alleviate the fatigue he built up during his suicidal and senseless training.
Constantly wearing down his mind and condensing his consciousness without a single moment's rest beyond the occasional blackouts had left Toz's body and brain in exhausted shambles. Sleeping would helpfully prevent Toz from collapsing.
Toz slept like a baby, a baby sleeping on a cold hard floor, tied down with chains, and with a splitting headache. Since he had been too tired to tell how bad he felt before, Toz felt worse after waking up, so he went right back to sleep. The exhaustion of his still-recovering mind helped him greatly in making him sleep again.
