Trazodone
"First week on it at 25mg, half a pill.  My doc allows me to get double the size so I don't have to buy it as often.  Success from night 1  I get drowsy in 10 minutes, and out most every night, for all night. My bed time varies from 9pm to midnight depending on what I'm doing. Wake up typically 6am ready to face the day. I am told this doesn't interfere with  the brains alpha waves. Side effects: a little dry sinus and head warmth, not quite a head ache, very acceptable.  Me 55 yr old male, blood type O , 185#,  TBI after 2 years, vertigo, headaches and migraines are typical for me,  fibromyalgia, depressed to dysthemia,  memory problems.  I have found run-walking an hour or two a day very helpful, yin yoga very helpful too."