Great extendable bed- my 19 month old loves it and it should grow with her to last a long time. My Mum has a similar one at her house and the kids loved having fairylights wound around the frame. I will make a soft cover to go over the head board because at the moment, my daughter tends to raise her head and clunck it down on the bars but I do not think this would be an issue for an older child. The frame at the side helps to stop her rolling out accidentally. As a temporary measure I've put pillows around in front of thd metal to give it some padding. It is much wider than the cot, ideal for reading stories together and useful if I want to lie or sit next to her to get her settled.
Great piece of kit....goes together easy you just need a Philips screwdriver and that's it...mattress is great too with a removable zipped cover...all in all excellent. .