Life can't just 'force' you into #3. It's still a choice you are making. If it is between you not being able to make a meeting on time or a cyclist getting killed because you fell asleep then I hope we can agree the negatives far outweigh the positives.

If you can't stay awake for an hour that must be very challenging but I don't think you should be driving at all for longer distances. At least not on a road you share with other people!