It's called a Kuranda bed, and I bought it because it's up on legs. You see, Becky has this bad habit of sleeping, when it's cold, directly on the register. That's good for her, but not so good for my heating bill, because it takes the furnace much longer to keep the room heated. I figured that I'd put the new bed directly over the register. That way, Becky could get heat from it, and there would still be room for the heat to disperse throughout the room.
She didn't seem to understand the concept, at first.