How often should we change our sheets?
The general consensus is that we should all be changing our sheets – including duvet covers and pillow cases – once a week, argues Tierno. However Professor Val Curtis, from the London School of Hygiene & Tropical Medicine, tells HuffPost UK she doesn’t believe leaving your sheets on for a few extra weeks will lead to health problems.
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But, doing so might not look or feel great: Prof Curtis advises people to change their bedding once a week for “aesthetic reasons”.
Should we wash our duvets, too?
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We should be giving our duvet a six-monthly clean or – at the very least – washing it once a year, according to The Fine Bedding Company. Bacteria and bodily fluids build up in duvets over a short period of time, the company argues, with duvet covers and pyjamas merely acting as a “first line of defence” against sweat.