That's where the Modafinal comes in. It is not a drug to make you sleep, but to "re-set" your physiological clock when you arrive. It revives you. I have tried it twice now. Once it was particularly that I be sharp. I had to over-see installation of a new sound system in a lecture hall just while dealing with a technophobic partner and tech who did not speak English. This a few hours after SFO- ZRH by plane, and another 90 minutes on a train.

It is a prescription drug, so your doctor can tell you the details. I will use it again.