Cabin beds are made for children and although these beds look great and are very practical, you should always keep in mind that you child will be the one sleeping in one of them. This is why you should also do your best, to buy a bed that will be safe as well.
This does not only mean that the cabin bed you buy should be well built, but it also means that it should be made of a natural material. I recommend a wooden frame. We all know that the real wooden bed frames are more expensive than those made of artificial materials, but considering that your child will sleep in this bed for years to come, the difference in the price should not be the only reason you will end up buying a bed of poor quality.