I've had 2 sleep studies. They aren't fun. I only slept about
an hour on the first one and the doc said everything was fine.
I had another one because my great Internal medicine doc said that in a number of cases, people who present with fibro are actually extremely sleep-deprived from sleep apnea.
My next sleep study showed that I was awaking about
30 times an hour, had very little deeper sleep and no REM sleep at all.
I've been using cpap for over 2 years now, and its helped alot. But I think something got funky in January, because all my numbers on the cpap machine aren't as good.
Anyhow.........long term sleep deprivation can have alot of bad effects on the body.
Good luck to your daughter. Its not a fun test. I did better on the second test, once they allowed me to have xanax ahead of time.