Many people with fibro are physically exhausted yet go to bed and stare at the ceiling.
In general, the more hours in the day your energy runs better the easier it will be for you to go to sleep. Your nerves will not go to sleep easily when there is too much trash in your body and you have built up too much Substance P in your nerves as the day has gone along. Of course, when you dont sleep well then it is a lot harder to have energy the next day (a vicious circle). The natural approach is to get energy production, stress processing, and detoxification systems all working better at which point your body can more easily go to sleep. There are a variety of sleep support nutrients that can also help you out.*