Are you sure there aren’t scientifically attested better ways to get to sleep than that herb?
I no longer do it. Most of the Rx sedatives and hypnotics have vicious adverse effects profiles. But I found an older one, almost forgotten now, and asked for a prescription. It works! And really no side effects at all. No OTC sleep promoter I tried did any more than help “a little”.
I bought an electronic piano, and play it an hour before going to bed. I sleep deep at night, having vented all my cussing before. (Progress is slow. Nobody wants to teach a 73 year old how to play the piano.)