The right way to wash bedding: water temperature, frequency and drying

Water temperature is the key variable

Regular cold-water washing can remove some allergen, but its effect on the mites themselves is limited. When conditions allow, it is recommended to wash sheets, duvet covers and pillowcases in hot water above 55°C; if the hot water at home is not hot enough, you can use a washing machine programme with a heating function or high-temperature drying to make up for it.

Frequency and order

It is recommended to wash bedding that touches the skin once a week, and at most no longer than two weeks. Before washing, shake off surface skin flakes before putting items into the washing machine to avoid raising dust; after washing, dry thoroughly, because damp fabric is a breeding ground for both mites and mould. When making the bed, move gently to reduce the chance of allergen getting into the air.

The link with skin symptoms

For people with eczema, allergen and irritants on bedding can make night-time itching worse. Choosing soft, pure cotton bedding with no fluorescent agent residue and with detergent rinsed out thoroughly, together with enough emollient (moisturizer), often improves sleep quality more than switching to expensive fabrics. If skin symptoms keep getting worse, you should see a dermatologist rather than relying only on changing bedding.

This article is for general information only and not medical advice. For specifics, please follow your doctor's advice.