Have Trouble Sleeping........

There have been several nights that I have a problem going to sleep.  Once I get to sleep there's always something to wake me up.  I'm done for the rest of the night, and lay in bed tossing and turning the rest of the time.  I don't want to take anything that might cause me problems, but I'm sure that if I could find one of the  natural sleep aids  it wouldn't be addictive.  That's something that can cause even more problems.  Getting addicted to a medication is very bad.