Can I take Benadryl and Nasonex together?

I am on prescription Nasonex for my allergies, but lately I have been taking Benadryl at night to help me fall asleep. Is it okay to take Nasonex and Benadryl at the same time? One is an antihistamine and one is a corticosteroid spray so I don't see why they would be unsafe to take together, but I was just wondering if anyone else has done the same or been told not to by their doctor for any particular reason.