Sleep
Unlike zombies, the player needs to sleep. When you need to sleep, the sleep moodle will show up on the screen. To sleep you need to find a bed or a sofa.
While sleeping, time will fast forward until you wake up. When you do sleep, tiredness and any effects of sleeping tablets, beta blockers and anti-depressants will disappear.
Failing to sleep will cause your health and accuracy when using weapons to drop.