insomnia
"Been using it for about 5 months and it has been a miracle worker until recently. A few weeks ago started having random sleepless nights. This week has been terrible waking up after 3-4 hours and feeling wide awake. Not sure if my body is getting used to it but I thought I'd check the reviews to see if anyone else has had the same problem. I hope this is a fluke because Silenor really had changed my life and even though it was expensive it was worth being able to function the next day."