The entire workforce of Hong Kong is sleep-deprived! That's the shock finding from the University of Hong Kong. Of 1,032 people interviewed in its survey, 92 per cent of respondents said they have experienced one or more sleep-deprivation symptoms. These include sleeping late at weekends; needing an alarm clock to wake up; feeling drowsy while driving, falling asleep while watching TV; having to struggle to get out of bed in the morning and falling asleep after lunch or dinner or in boring meetings or lectures. The last bit may not be the sleeper's fault, though. There are also other interesting titbits. Most people, for example, prefer to sleep alone. Fifty three per cent of those respondents who go to bed with a partner and 85 per cent of those who sleep alone prefer sleeping solo, the survey said. The most popular bed size is four feet by six feet (1.21 metres x 1.82). Lest you are wondering why these questions were raised; the research was paid for by Simmons Bedding and Furniture.