Big, BIG Boy Bed

We've decided to buy Lex a twin mattress and take down his crib/toddler bed. :( Wow. It just hit me. When we do this, all signs of Lex's "babyhood" will be gone. I can't believe he's 3 already and wanting a new bed. Yesterday while we were playing in his room he said to me..."Mommy, I want a big, BIG bed! Not this little bed. And I want my room to be robots." :) He's already deciding for himself. I think that's cute.So I'm on a mission to fins robot bedding and decor. He's going to love it!!!!