DS 2.2, has dropped daytime nap just before his birthday. Sleeps about 10 hours-ish, but wakes during this time and comes into bed with us, then we all sleep better. But he wants to get up from about 4am, so spend the wee small hours wrestling him back into bed and trying not to let him wake up too much - once he starts talking it's almost inevitable that he will get up and there's nothing to be done. I was exactly the same. We cope but at those whose kids sleep 12 hours and nap!