Fascinating, I have always been interested about the subject of sleep. I've certainly had real world experience, of course this is anecdotal. I have several sleep disorders and I think it may be an important factor with me/cfs and Fibromyalgia whether a contributing factor or downstream effect.
I think anyone with our disorder should have a sleep study but don't think this is usually used as a diagnostic tool.
I've read and my neurologist claims that by the time you get tired you may have already had the microsleeps you describe.
Thanks!