@treehugger @Frieke72 @tomkindlon @mecfs this has very much been my experience too. When I was at my most severe, I was only able to get two hours of sleep a night, no matter what I did. Meditating, medicating, it made little difference.
As I've gotten better at pacing, as I've found better treatments, and my nervous system has found some measure of peace, I'm usually able to at least be asleep for 8 hours. I have fewer nights where I struggle to fall asleep and/or wake up too early and can't get back to sleep. Usually when I do, it means I've overdone it the previous day.