Re: Normal arousal index?
I find this so interesting because I have suffered excessive daytime sleepiness for years with no explanation. My sleep study showed a REM latency of 216 minutes and an arousal index of 33/hr, and I was told this was "normal" and the result of something called "first night effect" which means that sleeping in a strange place caused my sleep to be disrupted. (Of course I find this explanation to be complete crap.)
I don't know what a normal arousal index is, but did they tell you what kind of arousals they were (i.e. spontaneous, respiratory related, etc?) I had an apnea index of 5.2 along with the arousal index of 33, and when I asked if the spontaneous arousals could actually be respiratory related (such as in Upper Airway Restriction Syndrome) the sleep doctor told me emphatically that, no, any respiratory related arousals would have been noted as such. (This was at a highly recommended accredited sleep lab, surprisingly).
What does your neurologist think your diagnosis might be? I would recommend reading up on UARS and other sleep disorders if you haven't already, and also try to find a board certified sleep physician to go over your results with you and help try to pinpoint the root cause of your sleep troubles.