I was on Seroquel ( a high dose but don’t remember exactly) for insomnia. It worked like a dream for me and helped my depression from chronic pain. However I developed Tardive Dyskinesia (weird facial movements that were uncontrollable). I thought the TD was permanent but it did finally go away after about a year. That class of medication, the antipsychotics, can work well for insomnia but often produces unwanted side effects. I was also on Abilify in that same drug class which helped my insomnia and depression but I developed a significant tremor, so much so that people often asked if I had Parkinson’s disease. Remeron, another antipsychotics had the same bad side effects of exacerbating my already out of control migraines. Ambien worked well for me for sleep but is a benzodiazepine which is addictive and can cause memory issues, I lost 3 days time while taking it. Same with Ativan, it’s also a benzodiazepine which works but is highly addictive and quickly requires more and more to sleep. I’m on it now along with hydroxide and 900 mg of Gabapentin. It works and was given to me as my estranged sister passed away unexpectedly leaving me in a state of shock and guilt. Good luck to you. I’m signed up for a sleep study but it took me a year to get an appointment so we’ll see what happens though I doubt much.