I've discovered that there is a positive correlation between me having really weird dreams and me taking Unisom to help me sleep. Because this is a correlation only, I can't infer any causality. My crazy dreams may be a result of poor sleeping habits which cause me to take the Unisom, or Unisom might actually be causing the dreams. Or possibly some other factor is involved. All I know is that every time recently that I've had really messed up dreams its been on thr same night that I took some Unisom to put me to sleep.