yeah... i get this every time i take melatonin. i have reservations about using melatonin to fall asleep sometimes because i know for a fact the next morning is going to be sluggish and difficult.

You might be taking it too late in the evening. Melatonin takes around 2 hours to really work. So, if you are going to bed at 10pm you should take melatonin around 8pm, no later than 9pm. My daughter is going through this right now as well. You just have to take a few nights & find the best time to take it for your body. Valerian root is a good alternative to melatonin.