My ds is almost 6 and hasn't taken naps since he was 2. The last few days he has been really grumpy and whiny in the afternoons (a sure sign that he's tired) and has fallen asleep for a couple of hours in the late afternoon. he's still sleeping the same amount at night maybe going to sleep a half hour later or so. He has been sick but is on antibiotics and has felt fine the last few days. Anyway should I be worried? Dh says he's probably just having a growth spurt, but I'm concerned that something might be wrong. Anyone had a child this age go through a stage of needing a nap?