Some people really like 5-htp...

For me I found it irritating rather than settling.

The theanine is what I use for anxiety. It was recommended by
Dr. Blaylock MD (neurologist) in his newsletter for nerve damage.
A member of our PN forum brought this information to our readers' attention. You have to subscribe to get his newsletter, as it is not available online free.

I was waking up at 1am or so, with pain, and low blood sugars.
Nightmares also. Since the theanine 300mg at night, I am much better. Adding the L-tryptophan was even better.
I used to work midnights when I was younger, and I think I ruined by circadian clock! I sleep well, on a cycle, of about 2 weeks, and sometimes wake up and sometimes not.
At least the theanine works for the anxiety issue nicely.
It is not habit forming and not sedating, so you can take it in the daytime too.
This is an article on theanine:
http://web-us.com/l-theanine_anxiety_reducer.htm

My son was using this last summer so I decided to try it.
It is also helping with my dawn phenomenon elevated blood sugars... a benefit I didn't expect.