Being tired, and sleep deprivation are two entirely different things. As an ex-soldier,I am intimately familiar with the latter. Being awake for 24 hrs is doable for most people, especially those in good shape. Pushing the 36 hr and beyond mark is when sleep deprivation sets in. So you need a "tired" warning, then a "sleep deprivation warning" with appropriate penalties for both.

None

Ok

0.0166335

Yes

0.119.4