If you have to drive despite this, you probably should ensure to have a supply of caffeine in the car (e.g. caffeine gums, instant coffee, maybe energy drinks)

If you have to drive despite this, you probably should ensure to have a supply of caffeine in the car (e.g. caffeine gums, instant coffee, maybe energy drinks) and take a sufficient dose before driving [https://www.psychologicalscience.org/news/motr/can-a-caffeine-buzz-improve-driving-safety.html https://www.psychologicalscience.org/news/motr/can-a-caffein...] You might also be able to get a prescription for modafinil, which might be even more effective.