Giantex Twin Over Twin & Twin Bunk Bed, Triple Bunk Beds with 4-Step Storage Stair, Wooden 3 Bunk Beds for Kids TeensTriple Bunk Bed with Storage: The kids bed includes an upper twin size bed with storage space and lower dual twin size beds. (You need 3 twin size mattresses.) Each wood bunk bed integrates an embedded surface to stably support a mattress up to 6" thick, eliminating the need for a box spring. This layout offers a multi child family sleeping solution while maximizing room space. Easy Assembly & Storage Staircase: Designed for easy assembly, this kids