Teachers are surrendering their own time during holidays and at the weekend to get through lesson planning, marking and administrative duties, a survey by tesconnect.com has revealed. Around 80 per cent of teachers have given up a night in their double bed in the last six months to keep up with school work, and 41.7 per cent had made the sacrifice in the last four weeks. The data gathered indicates that despite the notion that teachers have long holidays and finish work when the kids do at 3pm, most actually average over 56 hours per week. Of the 1,600 teachers questioned, the majority claimed they spend nine or more hours on school-related work each week, with 64 per cent of the poll's participants saying the "hidden" hours taken up by preparation for the job have affected their health. A further 81 per cent said the hours have had an effect on their personal life. Louise Rogers is chief executive of TSL Education, TES Connect's parent company. She said she was not surprised by the finding that teachers give up their weekends, as their website, a resource for teachers, is busiest on Sunday afternoons. She added: "When most other professions are taking a rest, teachers are busy preparing for the week ahead."