Most people spend about a third of their lives in bed, yet many neglect the hygiene of their sleeping environment. According to a 2022 YouGov poll, only 28% of Britons wash their sheets weekly, with some waiting up to eight weeks or longer between washes.
Each night, sleepers shed hundreds of thousands of skin cells, excrete oils, and sweat up to half a pint of fluid. This creates a breeding ground for bacteria, fungi, and dust mites. The microbes break down sweat into smelly byproducts, while skin flakes feed dust mites whose droppings are potent allergens that can aggravate eczema, asthma, and allergic rhinitis.
Microbiologists recommend washing sheets weekly, or every three to four days if you have been ill, sweat heavily, or share your bed with pets. Wash at 60°C or higher with detergent to kill bacteria and dust mites. For deeper sanitisation, tumble dry or iron. To target dust mites inside pillows, freeze them for at least eight hours.
Pillowcases and duvet covers should be washed at 60°C or as high as the care label allows, treating them like towels with regular hot washes. Duvets themselves should be washed every three to four months, depending on usage and whether pets or children share the bed. Many duvets are machine-washable, but check the label.
Mattresses should be vacuumed at least weekly and aired every few days to reduce moisture that attracts mites. Using a plastic or allergen-proof mattress protector and replacing the mattress every seven years can also help maintain hygiene.
Regular laundering removes sweat, oils, microbes, allergens, and dead skin cells, reducing allergic reactions, preventing infections, and keeping odours at bay. As research continues to highlight the impact of sleep on heart health and mental clarity, a clean bed is a small but powerful investment in wellbeing.
