Inflatable Bed Rail How Can We Keep Her From Falling Out Of Bed?

How can we keep her from falling out of bed? - inflatable bed rail

We bought bed rails, but not in its dual function, and not distort it. The bed is less than 2 m above the ground, so I thought I just try lots of pillows and blankets, to lay the ground, and if you went into it would be nice. Well, he fell and it was good. . . every night. It falls, you roll down under the bed and cried for help. We thought about buying the inflatable bed rails, but it does not seem necessary. Now we have the mattress and sat on the floor, to see them. Ideas? Thank you!