Wakefulness

''You force a creature to remain awake for an extended period of time. Bloodshot eyes that see tiny sparkling lights will not close before the spell ends, when the creature collapses from exhaustion. ''

The subject of this spell cannot naturally fall asleep. When this spell ends, the subject becomes exhausted. Another wakefulness cast before the previous expires allows the subject to stave off exhaustion, but the subject must afterwards get eight hours of sleep for each casting to remove exhaustion or fatigue. This spell counters, and is countered by, spells that induce magical slumber (such as sleep).