A salient point made by Ollie Onion.
"We are digressing a little bit here as controlled rest is NOT a tool for fatigue, it is a tool to use to combat tiredness that occurs when you are flying while your body is saying sleep. If you are fatigued you should NOT be at work, if you are tired you should grab the opportunity to rest whenever you have the opportunity as allowed by you company SOP's. This tiredness will happen in any job where you are expected to work through the night, the only way that FTL's could get rid of this kind of tiredness would be to BAN all flying between the hours of 23:00 and 0600. It ain't going to happen."