At first I thought how the bed rail to keep at all. When I pinched it between the mattress and slatted frame, the mattress was no longer fit between pure. We wanted it only to return, however, I would have to then take over the cost of postage, so we decided the grid to keep them. We then have the right mattress pressed down then considered it, but a small slope of the mattress to the grid remains the same. It meets repays its purpose, that our 3-year-old daughter not tumbles out of bed. Must climb over a child but not otherwise, it is together with the grating on the floor. Unless you would fix it with screw clamps on slatted :-)