I tested 6 of the best silk pillowcases – after two months of sleeping on them, these are the ones I'd buy again

This is how silk pillowcases from Blissy, John Lewis, and more, performed

Three of the best silk pillowcases as tested by Ideal Home
(Image credit: Future)

The best silk pillowcases can transform your bed and your sleep experience. That might sound dramatic, but as Ideal Home's Sleep Editor, I've spent the last few months testing the best silk pillowcases on the market, and I'm now 100% convinced silk is the best fabric to rest your head on at night.

So much so that I'm ditching all of my cotton pillowcases in favour of Mulberry silk pillowcases from now on. Why? Because there is no other fabric that performs quite so well next to my skin.

A silk pillowcase doesn't just feel super luxurious to sleep on, but silk fibres also have numerous skin and hair benefits. Silk doesn't sap the skin's natural moisture in the way cotton and synthetic fabrics can, so it's less likely to cause dryness or make skin conditions such as eczema and psoriasis worse. It's also naturally hypoallergenic, and its smooth surface is perfect for taming frizzy hair.

Plus, silk pillowcases are perfect for hot sleepers like me. That silky surface doesn't just feel cool to the touch when you first lie your head down. I paired my silk pillowcase with one of the best pillows for hot sleepers, and silk's natural temperature-regulating qualities mean I haven't overheated or turned my pillow over in search of a cooler side once.

Best silk pillowcases

The downside is that the silk pillowcases can be expensive. Which is why I've compiled my past few months of testing into a round-up of the best silk pillowcases on the market. This is the silk bedding I would buy again... and again, and again.

How I tested

amy lockwood
Amy Lockwood

I'm Amy, Ideal Home's Sleep Editor, and I've spent the last four years testing sleep products by night and sharing my findings with our readers by day. I'm a hot sleeper, prone to dry skin, and have hair that can turn to frizz at the drop of a hat, so there was no one better to put the best silk pillowcases through their paces for this guide.

Six of the best silk pillowcases I've tested

(Image credit: Future / Amy Lockwood)

I tested each of these silk pillowcases by sleeping on it for at least a week on my own bed.

I also dived into the specifications to find out each pillowcase's momme rating, how many colour options it's available in (ideally I like a little more choice than simply white), and its washing instructions. I also read customer reviews to make sure that other owners experiences aligned with my own.

I then washed each pillowcase according to its care instructions to make sure there wasn't any shrinkage and that this delicate fabric came out of the washing machine in the same condition it went in.

I've only included those silk pillowcases that performed the best in this round-up.

How to choose a silk pillowcase

There's a common theme in all of the best silk pillowcases I tested, and that's that they're all made from Mulberry silk (apart from the one rogue satin entry I included as a budget alternative).

There are four main types of silk, and Mulberry silk – so named because the silkworms that produce the cocoons that this silk is spun from are fed exclusively on mulberry leaves – is widely recognised as the softest and smoothest. That makes Mulberry silk the perfect option to have next to your face overnight.

Having tested other options simply described as 'silk', I would recommend sourcing a Mulberry silk pillowcase if you want the best quality.

It's also worth considering the silk's 'momme' rating. Momme is for silk what the best thread count is for cotton bedding, as Deborah Fiddy, founder of silk bedding and nightwear brand Gingerlily, explains.

'Silk is measured by a different unit called “momme”,' says Deborah. 'The higher the momme, the thicker the finished material is and therefore, the softer and longer lasting your bed linen will be.’

All of the best silk pillowcases I tested were between 19 and 22 momme, and although I didn't notice that much difference in quality between these two ratings, I would recommend not going any lower if you want a high-quality fabric.

Three of the best silk pillowcases being tested

(Image credit: Future / Amy Lockwood)

FAQs

Are silk pillowcases actually better for you?

Whilst silk pillowcases aren't necessarily 'better' for you, this silk bedding does have benefits that cotton or synthetic fabrics don't.

'Silk bedding offers a luxurious and comfortable sleep experience,' explains Deborah Fiddy, founder of silk bedding and nightwear brand, Gingerlily. No fabric feels quite as luxuriously sensual as silk.

A silk pillowcase is also a great option for hot sleepers. 'Silk is temperature-regulating, so it'll help keep you cool and comfortable throughout the night,' explain Emily and Jonathan Attwood, founders of luxury bedding brand scooms.

Plus, 'silk is naturally hypoallergenic and resistant to dust mites, promoting a healthier sleeping environment,' says Deborah. 'Silk also has a high protein content, which will keep your skin soft as you sleep – making it the ideal choice for anyone with allergies or skin conditions such as eczema.’

The Alaska Bear silk pillowcase in white

(Image credit: Future / Amy Lockwood)

Is silk hot to sleep on?

Wondering if a silk pillowcase will make your head hot? No, it will do the exact opposite.

'The benefits of silk can be felt more profoundly in the summer,' explains Deborah Fiddy of Gingerlily. 'Silk's inherent temperature-regulating properties help keep you cool by allowing heat and moisture to escape, acting as a natural heat conductor, adjusting to your body temperature as you sleep and preventing overheating.'

What is the highest rated silk pillowcase?

After testing numerous silk pillowcases at home, I rate Soak & Sleep, John Lewis, Blissy, and scooms as the best silk pillowcases to shop. Which brand you opt for will largely depend on whether you want a pair or a single pillowcase, which retailer has your preferred colour choice, and if you want your silk pillowcase gift boxed. If you're gifting the pillowcase, Blissy or scooms offer the best gift boxed options.

The blissy and scooms silk pillowcases in their gift boxes

(Image credit: Future / Amy Lockwood)

What silk pillowcase is comparable to Blissy?

I found that Soak & Sleep, John Lewis, and scooms all offered Mulberry silk pillowcases that were comparable to Blissy's quality. The main difference is that Blissy's Mulberry silk pillowcases come in a *lot* more colour options, and the brand offers the widest choice of patterned Mulberry silk pillowcases I've come across.

How do you wash a silk pillowcase?

Silk is a very durable material, but it does require more tender loving care to maintain than cotton, linen, or synthetic materials. Our guide to how to wash a silk pillowcase talks you through the washing process, which requires specialist silk detergent and a cooler, delicate machine cycle.

Amy Lockwood
Sleep Editor

Amy is Ideal Home’s Sleep Editor and the Ideal Home Certified Expert on Sleep. She's spent the last four years researching and writing about what makes for the best night’s sleep during the day and testing out sleep products to find the best-in-class by night. So far she’s clocked up over 10,000 hours of pillow, duvet, and mattress testing experience.

Our go-to for all things sleep-related, she’s slept on and under bestselling products from Simba, Emma, Hypnos, Tempur, Silentnight, Panda, and many many more.

As a hot sleeper, Amy is always on the lookout for the most breathable bedding, but she also leads a wider team of testers to ensure our product testing encompasses both hot sleepers, cold sleepers, front sleepers, back sleepers, side sleepers, and everything in-between.