How do I use these to their fullest potential?  I listened to the beginner and 90 min track for 2 days and it worked ok but then I switched to an 8 hour track and I can honestly say I sleep better without the binaural beats than with them.  Any suggestions?  Should I keep using them?  My sleep isn't terrible but its not good either.  I'm just trying to improve my overall health.
Personally, I prefer to play just one track to get me started, then let my brain do its own natural thing for the rest of the night. If you're finding the 8-hour track is making your sleep worse ... well, I'd stop using it. :)
CDVAK