At what age did they drop their one nap? Just curious if there's a correlation between short napping and dropping the nap early. LO's (23 months) one nap has never been terribly long, but lately the nap is even shorter, at about 1hr, 15min-1.5 hours (insert crying face here). I'll take a short nap over no nap, though, so I hope he's not going to drop it anytime soon!