The Atwater Living Margot Twin over Twin Metal Bunk Bed's sleek and modern frame is made for sturdiness and longevity. A great space-saver for multi-child bedrooms and ideal for sleepovers. It can accommodate two twin sized mattresses and includes two built-in, sturdy metal ladders for easy climbing as well as an 11" full length upper guard rail for safety. Secured metal slats ensure mattress breathability and offer optimal support to guarantee a good night's sleep.