There are two main types of kids bed rails, and they are classified by their method of installation. On one hand, you will find the type that works by being placed under the mattress. On the other hand, there are does that are fixed to the bed structure by means of anchors. Bed guards can also be fixed or mobile, the former doesn't move after instilled, while the latter can fold down.
When considering folding bed rails, there are several models with different mechanisms. Folding rails, as the name suggests, fold down to make getting in and out of bed easier for the child. There are also telescopes, which are lifted as if they were a telescope. Last but not least, there are also removable handrails, which can be easily taken down and put back on each day.