Have any of you transitioned your toddler from the crib to a toddler bed before 2 yrs? I am honestly not sure that he is ready and want to keep him in the crib as long as possible. I have a lot of lower back problems and am having trouble lifting him in and out of the crib. He is 21 months and 30lbs. We currently have his mattress on the floor of the crib. We removed the metal part because he was trying to climbing out. I am so nervous about him being able to roam freely. His crib converts to a toddler bed with the rail. I still feel like he will end up on the floor. He moves around a ton!!