That might be how it goes. For us, Tyler hasn't napped consistently in 1 yr or so. Some days, he just doesn't, and that's the way it is. Sometimes, it affects him and he's cranky the rest of the day, others, you'd never know it. I still put him down for "quiet time" in his room every day at nap time. Sometimes he'll nap, sometimes he'll read books by himself for an hr or 2. I've found that he really needs some down time to relax (and so do I!) so that's where our nap time has gone. We've also figured out that he does need to go to bed a bit earlier on no-nap days, even if he isn't tired or cranky, or else he's a grump the next morning. That's just been our experience!