The rail provides protection from night-time falls, which allows a a younger child to skip the toddler bed and move straight from a crib to a twin bed. This security rail is a useful addition to the following River Twin Bed Perch Twin Bed Perch Bunk Bed (lower bed only) Sparrow Twin Bed (Does not fit on the Moss Twin Bed) Fun Facts: Meets all US, Canadian, Australian and European safety standards Easy to assemble by one person Child can get in and out unassisted Things Eco: GREENGUARD Gold certified Sustainably produced in Europe Made of eco-MDF Finishes are non-toxic, water-based and free of VOC health hazards Made under European environmental standards Packaging made of recycled cardboard Responsible recycling through licensed collecting facilities Worth Knowing: The mattress should be 6"-8" thick when using the guard rail
