I take gabapetin as well. But only at night.It works well for me. I think a lot of us have disrupted sleep and the fatigue is horrendous. I also don't have the next day brain fog that I get from sleeping pills. So maybe try the gabapetin. It may help.

Yes and I do at times have to take a sleeping pill.

There are many factors that can cause you to have insomnia, or just not be able to sleep at night. Pain is a real trigger, especially when you can't get comfortable. Long-term use of some meds will also cause insomnia. I have it from long-term use of prednisone and often from pain. I was on Xanax for many years just at night so my body would relax enough to be able to get comfortable and sleep. I was, at times, on heavy-duty sleep aids in conjunciton with the Xanax. I'm off those and have been for years and am now trying to wean off the Xanax, but that's been difficult. I found an OTC sleep aid from Target that does help with sleep - usually.

I take Mirtazapine, antidepressant, knocks me rigt out

Yes, and I do the same...take a sleeping pill.