Glad to find this thread, I've been using it for 2 weeks now and I must say it's impressive stuff. I bought the smallest dosage I could find at the local GNC, 1mg. I take one pill about 30-45 minutes before I plan to sleep, it's nothing dramatic but it really just helps me wind down to get ready for bed. It won't knock me out but restful sleep is definitely awesome.
If you guys are feeling groggy it simply means you aren't getting enough sleep. Try to get around 8 hours, and take the pill in advance. Start with small dosages!