Let's try another tactic.

Elliott LOVES his toddler bed. Let me rephrase that: Elliott loves to look at his toddler bed. He hasn't actually slept in it at all. He's been camping out on the floor every night for the past week. At first, we could go scoop him up and put him into it after he fell asleep. Then he would sleep in it all night. But now he's figured out the drill and won't let us relocate him.

So we've gone with the nuclear option. Forget trying to make a slow transition from crib to toddler bed to full bed. Nope, we're jumping right in. He was super-excited to go pick out the mattress and the new sheets and ride home with the mattress tied to the top of the car. Now if he'll just realize that it's so much more comfortable than the floor. Wish him (and us) good luck!