I have a very big day tomorrow, and I need to get a lot of rest. But I have insomnia really bad so it's very difficult for me to just "go to sleep". I've taken half a tablet of 5mg melatonin, and I'm about to take a bath while I drink my "SLEEPYTIME EXTRA" chamomile tea. Would it be SAFE for me to also take 25 mg of benadryl after taking the melatonin and chamomile?