Four open shelves built into the 76 x 8 x 30.5-in bookcase keep books, toys and decor within easy reach so kids can choose their own bedtime stories and display favorite items. The Montessori floor bed sits low at 16 in high with a wide 33 x 12.5-in entrance, allowing young children to climb in and out independently and practice self-care routines. Full-length fence rails along the sides help define the sleep area and provide a boundary to keep pillows and toys contained. A sturdy pine wood, engineered wood and MDF frame supports the 76.5 x 39-in twin sleeping surface without needing a box spring, while the bookshelf holds up to 44 lbs when items are spread across the shelves.