So weird, same thing happens to me - I can drink a huge can of energy drink, or a strong coffee or anything else with a lot more caffeine in it than usual and within 20 minutes I'm ready for a nap.
Not medical advice, I'm not a doctor, go speak to a doctor, this isn't a substitute for sleep etc etc. But in my experience, whenever I've found myself in a situation where I'm not able to get much sleep but still need to function for an extended period of time, Modafinil or Armodafinil has been an absolute life saver. No lingering caffeine like coffee as well, once it wears off it's gone and you can sleep normally (roughly 12-14 hours).
Overall downside - it's not super well researched, especially long-term effects, might cause brain problems, or cancer, who knows? I also often hear of people coming to rely on it as a substitute for sleep - it's not addictive per se, but what it allows you to do definitely can be.
Not medical advice, I'm not a doctor, go speak to a doctor, this isn't a substitute for sleep etc etc. But in my experience, whenever I've found myself in a situation where I'm not able to get much sleep but still need to function for an extended period of time, Modafinil or Armodafinil has been an absolute life saver. No lingering caffeine like coffee as well, once it wears off it's gone and you can sleep normally (roughly 12-14 hours).
Overall downside - it's not super well researched, especially long-term effects, might cause brain problems, or cancer, who knows? I also often hear of people coming to rely on it as a substitute for sleep - it's not addictive per se, but what it allows you to do definitely can be.