The same way as you want to have a comfortable bed to sleep in your child wants it too. A crib is a great bed to have next to your own. Often this type of bed is adjustable and acts as a "grow bed," and you can position your baby higher and lower down depending on how bigh he or she is. As your child gets older the crib can be converted into a regular bed. We also hiked so-called "travel beds" that you can easily mount up and down while traveling and visiting friends. For the youngest we have cradles.