What I've always noticed is that about 6 weeks in, my sleep started to improve. For years, I'd hear people talk about how important sleep is, and a good amount of the time, for more than 10 years, and especially during crashes, the only time I felt even remotely human was in the middle of the night. Sure, it's no fun being up all night & sleeping well into the afternoon, but I accepted it for a long time. Tried so many times to correct the sleep cycle, and it's so difficult that I got to a point where I'd rather have a couple of hours feeling better even if it's at 4 or 5 am vs. what living with ME typically feels like 100% of the time.
All of a sudden I was getting to sleep at 10 pm, then 11, then maybe 12, and sleeping for 6, 7, 8 hours straight, for extended periods. Can't put it to anything but the maf878. Made a huge difference. Still does.
Have had to come off it a few times for various reasons. Inevitable crash, then I get back on it, and six weeks in, bang. The sleep kicks in, and it has made living with the disease easier. Because, and it makes sense, but nothing about this disease really does, so even the obvious doesn't always translate--the better sleep, led to an increase in strength and stamina. Not huge--I wish it was. It wasn't like I could seriously view it as improvement strong enough to contemplate a return to work of some kind. But definitely a significant improvement, even if it's difficult to put into words.
It's not GcMaf, some have confused the two. It's a probiotic. Presumably it works along the same lines. But there's been a ton of controversy about GcMaf, and its controversial characters. This is not that.
What it is, considering how important sleep actually is (no matter how much I just didn't want to hear that for such a long time), whatever it is, it works for me & I recommend it. Of course, like anything else, it's bound not to help everyone. But for me no side effects to speak of, and a major change from sleeping 2 or 3 hours here, then being up for 3 hours, then sleeping another 4 hours and waking up feeling the worst I'd probably feel the whole day. Sure, you can take a sleep medication, but in my experience that'll help you get to sleep, sure, but not necessarily correct a sleep cycle in need of repair (plus there you may be risking dependency).