Are Silk Pillowcases Worth It? An Honest UK Guide
Silk pillowcases promise smoother hair and fewer sleep creases, and they are one of the most popular bedding upgrades around. The honest answer is that they may be worth it for some people, but the benefits are modest, and many of the headline figures come from brands’ own testing. This guide explains what to expect, what the jargon means and how to buy a good one in the UK.
What a silk pillowcase can and cannot do
Silk has a smooth surface, so your hair and skin can slide rather than catch. That may mean less tugging on hair and fewer pressure marks on your skin. Dermatologists quoted in the press generally say that reducing friction can be helpful, particularly for curly or textured hair, but the effect is usually modest.
It will not replace skincare, and it will not treat acne, hair loss or wrinkles. Precise percentages you may see, such as how much friction is reduced, usually come from the brands that sell the pillowcases, and we could find few independent studies. Treat exact figures with caution.
Silk, mulberry silk and momme explained
- Silk: a natural protein fibre made from silkworm cocoons.
- Mulberry silk: silk from silkworms fed on mulberry leaves. It is the type most often sold for bedding and is usually described as the highest quality.
- Momme: a weight measure for silk fabric. A higher number means heavier, denser silk. Pillowcases are commonly sold at around 19 to 25 momme. Heavier silk is usually more durable but costs more, so do not judge by momme alone.
- Grade labels such as 6A: sellers often quote a grade for the quality of the silk fibre. Check what the seller means by it rather than treating it as a guarantee.
- Charmeuse: a weave with a glossy face. Many silk pillowcases use it.
Silk vs satin vs cotton
| Material | Feel | Good for | Watch out for |
|---|---|---|---|
| Silk (mulberry) | Smooth and light | Low friction, a natural fibre | Price and delicate care |
| Satin (often polyester) | Smooth and shiny | Cheaper, with a similar slip | Can be less breathable, and quality varies |
| Cotton (percale) | Crisp and cool | Easy care and affordable | More friction than silk |
Satin is a type of weave rather than a fibre, and satin pillowcases are often made of polyester. If price matters, satin is a reasonable alternative to try first.
Who might get the most from silk
- People with long, curly or textured hair that tangles overnight.
- Anyone who likes a smooth, cool-feeling surface.
- People who are happy to follow delicate-fabric care instructions.
If you have a skin or scalp condition, ask a pharmacist or dermatologist rather than relying on a pillowcase.
What to look for when buying
- Fibre: check that it is 100% silk if that is what you want, and look for mulberry silk.
- Weight: around 19 to 25 momme is common for pillowcases.
- Size: check the size in centimetres. A pillowcase should be slightly larger than the pillow. Our pillow size matcher and UK pillow size guide help.
- Closure: envelope and zip closures are both common. Choose the one you prefer.
- Care label: make sure you are happy with the washing instructions.
- Returns: check the policy before you buy.
How to care for silk pillowcases
Follow the care label. Silk is delicate, and many silk pillowcases are washed on a gentle cycle in a wash bag with a mild detergent and dried away from direct heat, although instructions vary. Avoid harsh detergents and tumble drying unless the label allows it. Wash pillowcases regularly, because sweat, oils and hair products build up on any fabric.
Does your pillow matter more than the pillowcase?
A pillowcase is a surface, while the pillow does the supporting. If your pillow is flat or lumpy, replacing it will do more for your comfort than any pillowcase. See when to replace your pillow or try our free replacement checker. If you are choosing a new one, our Pillow Finder quiz can help.
Our range
At the time of writing we do not sell pillowcases, so this guide is independent advice rather than a sales pitch. You can read more in our pillow guides.
Silk pillowcase FAQs
Are silk pillowcases worth it?
They can be for some people, especially those with hair that tangles easily, but the benefits are modest. If you are not sure, try satin or a smooth, tightly woven cotton first.
Is satin the same as silk?
No. Silk is a natural fibre. Satin is a weave, and satin pillowcases are often made of polyester.
What momme is best for a pillowcase?
Around 19 to 25 momme is common. Heavier silk is usually more durable, but it is not the only thing that matters.
How often should I wash a silk pillowcase?
Regularly, following the care label. Many people change pillowcases about once a week, and more often if they use hair or skin products at night.
Do silk pillowcases help hair?
They may reduce tangling and frizz for some people because of the smoother surface, but results vary and the effect is usually modest.