Brilliant inventions

I had this brilliant invention when I was little. It was nothing short of genius, I tell you. It was a bed, right? But no ordinary bed, no sir. This was a bed that was at least twice as tall as your average box spring and mattress. It had a small door on the side that you opened up in order to climb right inside the bed. Once you got in, it was climate controlled (warm in the winter, cool in the summer), and it had pillows as well. So you see, you could be perfectly comfortable inside the bed and unencumbered by blankets. Cool, huh? Of course, when I revealed my brilliant invention to John, he derisively remarked that it sounded more like a coffin than a bed. Whatever. You know he's just jealous that he didn't think of it first.