Have just put ds down for his nap in big boy pants, and am hoping for the best! He's been training somewhat lacklusterly (because of his slack ma)and we had a set back whilst he cut a molar, but this week has been pretty good. Problem is he wakes from his nap very grumpy (his father's son, without a doubt) and refuses to swap pullups for pants (actually if dh could do that too, i am sure he would). So I bit the bullet, risked the mattress, and here goes!