Sleepless nights

I have been having a hard time sleeping.  I have tired Tylenol and Melatonin.  Tylenol PM works, but I have awful dreams so quit using that.  I will fall a sleep for an hour or two then awaken and can't get back to sleep.  Any ideas what to do are welcome.  A friend is going to give me a sample of an essential oil they use at their house.  Well it is that time to go back to bed again.  Hope all is well with you.