"i bought melatonin 5mg. the first time i ever took it i didn&#039;t notice any difference. i still couldn&#039;t sleep and still woke up during the day. 6 months later, i decided to give it another try. i took one 5mg and it did nothing, so i decided to up my dose. the next night i took 10 mg about 30 to 40 minutes before sleeping. i kid you not i fell asleep so fast i didn&#039;t know what hit me. i slept without waking up for a complete 8 hours and didn&#039;t feel tired when i woke up. this has seriously helped me a lot. it had been years due to insomnia and scoliosis since i&#039;ve had day much less months of good sleep. i highly recommend it. play around with doses. add 1/2 the dose or a whole pill of the dose you are already taking if it isn&#039;t working for you."