@birdman518 here’s a start on Benadryl for sleep as a problem. If it’s really an issue for you see a sleep specialist, read the book The Sleep Solution by Dr. W. Chris Winter, listen to podcast Sleep Unplugged with Dr. Winter.
https://www.bcm.edu/news/experts-warn-against-antihistmaines-sleep-aid#:~:text=While%20antihistamines%20may%20help%20you,term%20benefit%2C%E2%80%9D%20Alapat%20said.
https://www.healthline.com/health/healthy-sleep/antihistamine-for-sleep
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4592307/
Here is info on buprenorphine… https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4675640/