When you buy your clothes to buy the biggest you can enter the room because it uses space on top for optimal storage. However, if you buy a bed usually buy one that is close to the ground, which means you can not put much above or below.
It only makes sense for most of the furniture in the room very well be a more efficient space. On the other hand, if you buy a loft bed (which has nothing to do with the attic), you have about three feet below the bed where you can store a large number of items. Given the cubic foot of bed and considering that it is raised about three feet off the ground and you see the width of your clothing.