teddyDen - Kids Bed BaseteddyDen Kids Bed Frame Montessori Inspired 2 in 1 Design *1x Guard rail is included* The teddyDen is a versatile kids bed frame designed to grow with your child. Inspired by Montessori principles, it starts as a low to the ground kids bed, perfect for little ones transitioning from a cot to their first mattress. As your child grows, the unique two in one design easily converts into a big kid bed, by simply flipping the frame over and repositioning