I found it best. I can drive for whole night without feel like sleeping. For long distance journeys I prefer night driving only. The biggest benefit of it is I found lowest traffic at the night on highway so that I can travel fast and without any problem. I know it can be risky. But I think it is depend on person. If one can drive without any problem like not feel sleepy at all then I think it should be fine. But if anyone have doubt in mind then better not to try. What you think about it?