All of the above are signs only; this isn’t something that should be rushed or forced. If they are, then the chances of sleepless nights for you and them could increase. Cots have very clear rails as boundaries; however, toddler beds do not. If you think your child can grasp the concept of imaginary boundaries that they should stay within, then they may be ready to make the transition to a big bed. However, if they are up and down all night, then it’s a sign that they probably aren’t. If there aren’t any signs at all holdback, children grow and mature at different times. Don’t feel forced into it just because a friend or a family members child has already made the change. Look out for the signs and make the change when you are ready and most importantly, when they are ready.