I have suffered from sleep problems for years, trouble going to sleep and sleeping all through the night. For the past several months I have been taking a couple of tryptophan capsules (which I ordered through Amazon) about an hour before bedtime and this has helped me. Unless my brain is overly active, the tryptophan helps me go to sleep and I haven't been waking up as much during the night. I also read after I go to bed and this helps me go to sleep also.