Recently I wanted to increase my body's growth hormone production to repair stressed muscles. I read in a book on physiology that people who don't sleep well do no release enough growth hormone in the first few hours of sleep to repair the stress of muscles caused during the day. The book pointed to studies of taking the amino acids L-Arginine and L-Glutamine an hour or less before going to bed.
So I bought the two amino acids (500 mg strength each) and took one of each. I got the muscle repair I wanted. But something else happened - I SLEPT THE WHOLE NIGHT THROUGH! And I have been sleeping soundly since.
I think this works like a two way street. Insomniacs don't release enough growth hormone: Increased growth hormone release causes sounder sleep.
Also you don't have to take Arginine and glutamine every night. Just 3 to 4 nights a week (I know this because I sometimes forget to take the capsules). So it works in a Ted kind of minimalist sort of way. I appreciate that Ted from Thailand is a minimalist in supplement taking. It's refreshing advice.