I doubt that will be of any help since she's already tried Tylenol PM. The PM part of that is benadryl (25 mg of diphenhydramine).
I hope you find relief soon. Perhaps it is worth talking to someone that specializes in sleep as your issue seems to be very specific. There are lots of reasons for sleep disorders, and for me that means lots of ways to handle it. I feel your pain because although I've never been a 'good' sleeper, I went through a period where I woke up every dang morning at about 2AM. Mine was depression and the minute the antidepressants kicked in, I slept through the night. There may have been other meds that would have helped me sleep, but this adressed the real issue. Hence why I think it wouldn't hurt to find someone that maybe will take an interest in trying to help you with the cause.
I have no real answers, just lots of sympathy. I hope you feel better soon and get a full night's sleep soon too!

