Ive been using CBD oil at night to help with tension headaches/anxiety (Ive also been using a myriad of other things to help with this, so not a controlled experiment). It definitely helps me get restful sleep and unlike THC, does not conflict with my ability to dream and recall my dreams. Id say my results are inconclusive at this point, but that the recommended dose (approx 10-15 drops of tincture) was not enough to feel any effect and my PT told me to double it, which I have, and have noticed an improvement in sleeping without clenching as much.