This state of being impatient and frustration irritated him. It was probably a sign that his judgement was beginning to dull. He would need to rest and start over.

It had been over seventy hours since he last slept. Though he did not feel tired under the influence of amphetamines, his fatigue was still accumulating, and as a result his focus and overall condition were both deteriorating.

There was still some time before he would have to meet Maiya today; he should use it to get some rest.

After going to the bathroom, Kiritsugu lay down on the bed and used a self-hypnosis spell to disperse his consciousness. This was a crude way of eliminating mental stress, via the disintegration and cleansing of the psyche.

This self-hypnosis was not a high-level form of thaumaturgy, but the dispersion would cause a lack and dislocation of self-consciousness, so few people were willing to use it. But to Emiya Kiritsugu, it was the most efficient, and thus the best form of rest, and so he used this method frequently.

The scattered consciousness would be restored after about two hours, and the hypnotized person would wake up. Until then, the body of the hypnotized person would be like unto a corpse in terms of unconsciousness – but it should be safe to use it at this hidden place.

Kiritsugu, relaxed after dispelling the image of his enemy from his mind, fell into a deep sleep.

- Fate/Zero: Act 9, Part 2