D.S.
My children gave up naps at that age so we implemented quiet time. They would get a pillow after lunch go on the couch and that was their tv time. I would put a disney movie on and they had to stay on the couch. If they got off then they had to nap in their room. Sometimes they would doze off, most times they would just lay there and watch the movie. It was much less stressful for all of us and at least they rested. Children's sleep needs change as they grow, so there isn't much you can do about that. Good luck!!