We were under the impression that the Japanese preferred to lay their heads on hard little pillows made of wood, but the woodworkers of Japan are in for a lean time if another of those remarkable inventions recorded by Electronic Business magazine catches on with yuppie Nips (and lest anyone has the idea that we are being gratuitously offensive, we should point out that since the country calls itself Nippon, to call its inhabitants Nips is on a par with calling ourselves Brits): the fiendish head-rest – available from Hitachi, Matsushita and Toshiba – is an electronically cooled cushion that uses semiconductor devices to monitor body heat and keep the pillow several degrees cooler than your head; the price of a cool night’s sleep is $150.