Insomnia Support Group
Insomnia is a symptom, rather than a disease, and is characterized by inadequate quantity or quality of sleep. People with insomnia complain of difficulty falling or staying asleep, which results in significant impairment of daytime functioning. Insomnia is categorized as transient (shorter than one week), short-term (one to three weeks) or chronic (longer than three...
But anyway, it's better to do L-Glutamine+vitamin b6... Your body uses those ingredients to create GABA in the brain. Thats where you need it most (if you are low on GABA in your brain).
I found this web page for you that explains it better than I can.
http://www.neurogenesis.com/Amino-Acids/glutamine.php
-From an experienced L-glumatin user