Around 18 to 24 months of age, most toddlers develop enough physical skills to enable them to climb. They may use their stuffed animals or pillows to climb out their climbers. Sometimes, they may climb out of the crib without the help of the toys. However, not so children are so fearless as to explore and risk the danger of falling and may remain tucked until they feel safe enough and have an adult around them. But one has to be careful when children have learnt how to climb and reach new heights as the ability to judge danger is still not developed in children.
Children who can control their upper body and its movements well such as bending over to pick up something and can jump on both feet may also try to escape the confinements of the crib when there parents are not looking. When toddlers become a crib climber, it is better to switch from crib to toddler’s bed or a mattress on the floor for safety purposes. Even if the children do not try to climb out of the crib, it is advisable to move them to toddler bed or mattress on ground when they are as tall as 35 inches or about two years of age.