Frakking beds -- how do they work? Redditor mememetatata's design is simple but brilliant. It's just two wooden frames with opposing magnets inside. When assembled, the bed hovers a few inches off the ground.
It looks like the biggest problem that mememetatatta faced was that two of the magnets were shipped together. Each one had several hundred pounds of force, so he spent considerable effort separating them -- and photographing that part of the project.
Link and Gallery -via Geekosystem
I also would have preferred if the cables had been placed under the bed to avoid any tripwire effects...
However i would like to have some of the magnets..
You can get around Earnshaw's Theorem with superconductors, if you want to sleep over a large pool of liquid nitrogen. Perhaps someday, with room-temperature superconductors, we'll all be able to sleep on floating beds.
http://www.cancer.gov/cancertopics/factsheet/Risk/magnetic-fields