I took some NyQuil because I could not get to sleep I took it at 6:20am and still have not gone to sleep. So I took a benadryl (diphenhydramine) at 7:00am. Was it a good idea to do that? If not what can I go to fix it?

Others. Both products utilize the sedating side effect from older generation antihistamines and it appears that you are not benefiting from this side effect. Yet this may impair your ability to operate machinery so be sure that your alertness is not affected during your awaking hours. There are many reasons for insomnia (stress, depression etc?) . Talk to your doctor if this is a persistent issue. .