A.C.
Hi D.,
I believe your big boy is ready. We had to basically skip the toddler bed, cause once he got to sleep in big brothers double bed that was it. My son was a big boy too, who has now evened out and is just at normal size. he was a diabetes baby, 10 lbs. So the toddler bed was uncomfortable for him. He was out by 18 months. Just teach him to stay in the bed til you are ready for him to get out.