Mmmm, i wouldn't be in a hurry to move him either! If you need the cot for another use or he climbs out yes, but if he's happy with the cot why to change it at 2? I heard so many stories of kids starting to wake up in the night and coming out of bed, thinking it is time for playing, that I am also dreading the transition... Our it is quite close, as DS is already more than 3, big enough and still in a cot...