Having suffered insomnia for more than 40 years, I can attest to the efficiency of marijuana in assisting me to sleep, faster, and longer than any other sleep aid I have tried (and I have tried them all!) However, I could not say that I was 'cured' of that insomnia. I still need to medicate nightly in order to sleep well. I have found that a tincture works best for me, but that is an individual preference.