"i have had sleep disorders all my life since i was about 12. i am now 60. i have sleep apnea and have been using a sleep machine now for 10 years. i too am a worry wart and when my cortisol kicks in, i&#039;ll go for weeks without sleep. i&#039;ve  always used over the counter sleep meds 25mg. doxylamine off and on for 25 years afraid of addiction to them. i finally asked my doctor about the usage and he gave me 100% ok on this stuff. now i take one pill every night- get my 8 hrs, which is a new and wonderful experience for me! i prefer taking a little blue pill every night, and sleeping  great than to spend one more night awake.  i can only recommend doxylamine. much less dangerous than taking prescription drugs for sleeping."