Four full-length fence railings surround this low-to-ground Montessori floor bed so toddlers can climb in and out while remaining inside the 82 x 62.5 x 16 in frame. The solid pine wood and plywood construction forms a stable border around an 80 x 60 in sleeping surface for a queen mattress up to 8-in thick. A lockable door with latch lets adults control access for naps or nighttime. The door can be kept closed, left open, or removed entirely to match different stages of independent sleep. A smooth, splinter-free surface helps provide a comfortable touch during daily use.