i was sleep tested and was told i woke up 60 times an hour. i wore it for about 6 months and i felt the same tired. it seemed to piss the sleep dr off. so he kept the machine. i can not sit still with out going to sleep, i have to keep moving around. then my dr said my thyroid was dead about 2 years ago. i am still tired. but most of the hot flashes are gone now.