I had the exact same question when I started EASY. I finally figured that since DS fell asleep whenever I put him in the car seat, I just counted that as a nap. I figured that if he occasionally had a nap in the car seat while I ran errands, it won't be the end of the world. He has no problems falling asleep in his crib for his regular naps, since the car seat naps are only occasional ones. HTH