PJ has officially been moved up to a Big Boy Bed! He was in his crib until last July, when we decided to take down the crib rail to make his crib into a toddler bed. The plan was to keep him in the toddler bed until he was sleeping successfully through the night with underwear. He actually decided to do that last fall and only had one accident while he was trying. We went a little longer than we wanted because the holidays got in the middle of things, so last weekend we went shopping for a mattress, box spring and frame. PJ's crib was a convertible, so the last stage was the headboard that came from the back of the crib. The directions said the headboard would work with a full size mattress, so that's what we bought.
The store was right down the street so Rob became our delivery service (with some help from Uncle James). I had bought and washed all the new, full-size bedding (the comforter was a pain), and had it all ready for the installation. I even went to the library and got lots of books on moving to a big bed so that PJ would understand what was coming. Rob had the bed installed, we had the cameras rolling and shooting, and PJ was all set in his new bed...

Well, I woke up at 5 am the following morning, saying to myself, "It's too big!" The bed took over half the room, which means less space for a four-year-old to play. The crib was now useless because we were only using the headboard, and we were going to have to store all the other large parts, or God-forbid, throw them away (as Rob suggested--I'm sure you can see my look of horror!). And PJ just looked so tiny in such a large bed--I had to climb onto the bed to kiss him when he was sleeping.
So we went back to the mattress store, and hopefully didn't make the guy think we were crazy (or just idiots). We exchanged the full-size bed for a twin-size bed. I exchanged the sheets and comforter for a twin-size set (in better colors too!) And everyone is happy all around.