Our latest look at the UKrsquos sleep routines focused on what we wear to bed, and quite unexpectedly revealed some rather alarming hygiene statistics. Quizzing nearly 2,500 1830 year olds, we found that the average length of time men wear their pyjamas before washing them was a startling 13 nights, while incredibly women went even further, wearing the same nightwear for an average of 17 nightsOf the reasons behind why nightwear is washed so infrequently, the top result for women 54 was that by alternating between multiple pairs itrsquos easy to forget how long theyrsquove been out for, while men mainly claimed that they didnrsquot do the washing so just wore what was to hand 73. When it came to particular hygiene considerations, 41 of women and 50 of men claimed that since their nightwear didnrsquot smell to them at least, they didnrsquot see why wearing them for such long periods was a problem.