Every night leaves its mark on the bed: sweat, dead skin cells, skin oils and sometimes even pet hair. How quickly this builds up depends on the time of year, skin type and whether someone goes to bed with wet hair or without make-up. This article explains how often fitted sheets, pillowcases, duvet covers and the fillings themselves should be washed, which wash temperature suits which material, and how to tell when they’re due for a wash.
Why the frequency of washing matters at all
An adult sweats even on cool nights – on average, several hundred millilitres of fluid per night, distributed across the skin and hair. Added to this are dead skin cells, sebum and residues from make-up or deodorant. All of this ends up first on the fitted sheet and the pillowcase, right where the face and body are in contact most of the time. Dust mites feed on precisely these skin flakes and thrive particularly well in warm, slightly damp environments. Washing regularly deprives them of their food source whilst also keeping odours and skin blemishes at bay.
How often different items of bed linen should be changed
Not every item of bed linen needs to be changed at the same frequency. Fitted sheets and pillowcases come into direct contact with the skin and should therefore be washed most frequently.
- Fitted sheets and pillowcases: once a week
- Duvet cover: every one to two weeks
- Mattress protector: once a month
- Duvet and pillows (the filling itself): every three to six months, depending on the care label
- Bedspreads or throws that do not come into direct contact with the skin: every four to six weeks
These guidelines apply to the average household. Anyone who eats in bed or takes a shower straight after getting up in the morning will, in practice, tend to wash their bed linen at the upper end of these ranges.
Factors affecting how often you should change your bedding
The time of year makes a noticeable difference. On warm summer nights, perspiration increases significantly, causing sheets and duvet covers to become damp and develop a strong odour more quickly – a weekly change quickly becomes the minimum requirement rather than the norm. In winter, with dry, heated air and less sweating, the same frequency is usually sufficient.
Personal factors also play a role. People with oily skin, acne or atopic dermatitis benefit from changing their pillowcases more frequently, as skin oils and bacteria accumulate there particularly quickly. Anyone who sweats at night – for example, due to evening exercise or hormonal fluctuations – should also change them more frequently. Pets in bed bring additional animal hair, saliva and outdoor dirt into the bedroom, which may make it advisable to change them two to three times a week.
Washing correctly: temperature and care depending on the material
The washing temperature plays a key role in determining how thoroughly bacteria and mites are actually removed. Cotton and cotton percale can generally withstand 60 degrees and are reliably washed to a hygienic standard without the colour or texture suffering immediately – provided the care label confirms this temperature. Linen has a more robust structure, but is usually washed at 40 degrees to preserve its characteristic softness over many washes. Silk cannot withstand high temperatures or vigorous spin cycles; hand washing or a gentle cycle at 30 degrees with a mild, bleach-free detergent is recommended.
Regardless of the material, it is worth checking the sewn-in care label before the first wash. It provides specific information on temperature, suitability for tumble drying and whether ironing or mangling is permitted – these details can vary even within the same material category, depending on the fabric’s finish and treatment.
Drying and Storage
Bed linen should be allowed to dry thoroughly before being put away in the wardrobe. Slightly damp linen in a closed wardrobe can lead to mildew stains and a musty smell, which is difficult to wash out later. Natural fibres such as cotton and linen are particularly well suited to air-drying and retain their structure in the process.
Signs that it’s time for a change
Some signs are clearer than any calendar. A slightly sour smell when you lie down, visible stains on the pillowcase or fabric that feels rough rather than smooth are reliable indications that the bed linen is due for a change. Anyone who has been in bed with a cold or a gastrointestinal illness should change their bed linen and pillowcase immediately after recovering to avoid re-infection from germs on the fabric.
Guidelines for changing and washing by fabric type
| Type of fabric | Recommended change frequency | Usual washing temperature |
|---|---|---|
| Fitted sheets | Once a week | 60°C for cotton, as per the label |
| Pillowcase | Once a week | 60°C for cotton, as per the label |
| Duvet cover | Every 1–2 weeks | 60°C for cotton / 40°C for linen |
| Mattress protector | Once a month | 60°C, as per the label |
| Duvet/pillow (filling) | Every 3–6 months | as per care label; some items must be dry-cleaned only |
| Silk bed linen | every 1–2 weeks | 30°C hand wash/gentle cycle |
Why Maison de Cocon
- The Maison de Cocon bed linen collection includes cotton percale, linen and silk, each with care instructions appropriate to the material on the sewn-in label.
- Duvet covers, pillowcases and fitted sheets are available individually, so that items subject to heavy wear can be replaced and washed more frequently, regardless of the set.
- The sizes are based on standard European bed dimensions, making it easier to rotate between several sets in everyday use.
- Colours and weaves are designed to withstand repeated washing at standard temperatures for the material, rather than being intended to last just for the first season.
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