The marriage between technology and beds has a long pedigree. Necessity is said to be the mother of invention and the necessity to make beds help us sleep better, protect our backs and save space have incentivised scientists and engineers to push the boundaries. So has the need to come up with beds to improve our sex lives. In the 1780s, Scottish quack James Graham, the world’s first sex therapist, lured London’s glitterati to his fancy clinic in Pall Mall. Here, he assured the likes of the Prince of Wales and the Duchess of Devonshire that sleeping in his electrically-charged Celestial Bed – at the modest fee of £50 (about £3,000 in today’s money) – would cure impotency and infertility. 12-feet long, 9-feet wide and fitted with 15 cwt of magnets, when a couple were about to climax, the bed tilted on its axis, allegedly helping the woman to conceive.