British people who choose work over time in their double beds let work suffer after all, a study has revealed. The study of 38,784 workers showed that only 38.5 per cent got the recommended seven to eight hours sleep, the Guardian reported on April 1st, with side effects of their sleep-loss including falling asleep at their desks. The majority of the study’s participants managed only five to seven hours sleep, while 5.4 per cent did not even allow themselves that, reporting less than five hours sleep. The results of the research, which was carried out by Vielife between 2009 and 2011, have prompted concern for the British workforce. Dr Tony Massey, the medical director of Vielife, said: "British employers should be very worried about these findings. Organisations that have employees that sleep better perform better in the marketplace. Staff who sleep badly say they don't feel good, can nod off at their desk, have trouble concentrating, and are more prone to viruses and infections." Dr Massey has advised those affected to create a more sleep-friendly environment in their bedrooms. He prescribed a dark, quiet bedroom and a strict routine when it comes to the time workers retire to bed.