I have insomnia without AAS, so imagine how bad it is on tren.
I have used benadryl, 5-HTP, prescribed medical MJ, melatonin, TP sleep aid, benzos, muscle relaxers, unisom, basically everything out there.
Some of it worked ok, some of it stopped working after working well for a while, some of it had sides I didn't like, etc.
The one thing that worked awesome is seroquel.... you can get it cheap online, and if you buy 100mg tabs you can cut them in quarters because 25mg is all you need to knock yourself out.
If you read about it, the profile might scare you because it is an antipsychotic, but it is used for that in doses up to 600mg. It is a completely different drug at 100mg and under.
I liked it so much that I admitted to my doctor I had been taking it, and he had no problem with it at that dose, even wrote me script for it.