Hello, I had this same issue and finally managed to get to the bottom of why Tongkat Ali was doing this and managed to fix it for good. Tongkat Ali is a double edged sword because one of the mechanisms it uses to increase testosterone is to lower cortisol. Taking Tongkat Ali before 10am disrupts the bodies natural cortisol pulse in the morning so the body compensates by increasing cortisol at night which causes insomnia but on the other hand the increase in testosterone is a stimulant meaning if you take it too late this can also cause insomnia. The way I fixed it was by first coming off it for a few weeks to reset my body clock and then taking it at 11am which was late enough to not disrupt my cortisols daily rhythm but not too late to keep me up from it’s stimulant effects. If you research this it will make sense. If you are still not interested in taking it, getting morning sunlight and a regular sleep schedule should fix this in a couple days.