Fortunately, or unfortunately, I have never had a problem sleeping. I can sleep at night, I can sleep all day. It is sort of an escape. Life doesn't bother me when I am asleep.
The only thing that keeps me awake is the ringing in my ears. I find it helps to sleep in a noisy environment. Like turn the TV on, and let them drone on about something. I go to sleep almost instantly. If someone turns it off the ringing wakes me up.
But then I try some alcohol. I am a sleepy drunk. Generally that works.