GABA amino acid has helped my cousin, and a supplement called Tension RX (amino acid) has helped me with sleep. I brought out the big guns a few months ago for the adrenal fatigue and started taking hydrocortisone and isocort and my insomnia has been much better. I am seeing a doctor for this though- my adrenals are very weak and I had to do something major, I couldn't work and was having horrible anxiety that landed me in a clinic. I'm actually leaving in a few hours for Reno to see him.