I have trouble sleeping and i was considering taking valerian root? is there a downside to doing so? are there any side effects?

Valerian: Hi, the side effects include headache, irritability and sluggishness in the morning for some people, have you tried sleep hygiene, like: No TV in bedroom, no book in the bed, use bedroom just for sex and sleep, leave the bed if you don't fall asleep after 15-30 min, try to watch a calming movie, reading a relaxing book, have a cup of warm milk, do not exercise late at night, etc.