My DS is 2 and can climb out of his cotbed. He could do this about 6 months ago so we put him back in a sleeping bag so he couldn't. Now he can climb out of the cot in his sleeping bag! He climbs out and opens his bedroom door (to let the light in) and then throws all his toys around the room! Is it time to change to a bed or should we teach him to stay in his cot. Surely we'll have the same problem if he's in a bed?