A couch that had the magical property of improving the potency and fertility of couples who slept in it. Scottish doctor John Graham invented the celestial bed in London around 1780. To make his claim plausible, he added strange coils to the bed, constructed to provide small electric shocks. His clients used the bed in an atmosphere of erotic perfumes, music, and colored lights. Graham charged as much as 100 pounds per occasion (equivalent to many thousands of dollars today) and became quite successful. His accomplice in this dubious venture was Emma Lyon, later known as Lady Hamilton, the mistress of Lord Nelson. Skepticism grew, interest diminished, and his business collapsed. The bed was eventually sold at auction.