I'm thinking it's a stage. My little E did something similar for a couple of months before he finally decided (much to my dismay at first, until I realized how much easier nights were) to drop his nap. Once a week or so he still takes a nap, and then he's up late.
We're not totally out yet, but I'm thinking (hoping, praying) that it's a stage.
I'm sure some more experienced mamas will jump in soon too.
It's nice to know we're not alone. I'm
for advice.