Blissy vs Mulberry Park Silks vs Mayfairsilk Pillowcases: Reviews, Pros & Cons
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Key Takeaways
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Mayfairsilk weaves at 25 momme, Blissy at 22 momme, and Mulberry Park Silks offers 19, 22, or 30 momme, all in Grade 6A mulberry silk with OEKO-TEX® certification.
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Blissy's white Standard pillowcase carries over 33,000 reviews, while Mulberry Park Silks and Mayfairsilk show far fewer visible ratings per colour.
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Mayfairsilk cuts to UK pillow sizes, Blissy follows US inch measurements, and Mulberry Park Silks adds a Euro Sham option across Standard, Queen, and King.
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Return terms vary widely: Mayfairsilk offers a 30-night sleep guarantee, Blissy offers 60 nights money back, and Mulberry Park Silks accepts unused, unwashed-only returns.
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Mayfairsilk pillowcases arrive from a UK warehouse in matte 25 momme silk, sized to UK pillows, with a 30-night sleep guarantee.
Why Momme Weight & Sizing Set These Pillowcases Apart
Momme weight and pillow sizing set these three silk pillowcase brands apart more than silk grade does. All three use the same certified mulberry silk, so buyers often assume the pillowcases are interchangeable and choose on price or colour alone. That assumption misses the detail that actually decides whether the pillowcase fits the pillow it goes on.
A pillowcase that doesn't match the pillow size loses its benefit fast. An envelope closure on an undersized pillow works loose overnight, letting hair rub against the seam instead of the silk, while a zip closure on an oversized pillow bunches the fabric and creates the same friction it's meant to prevent. Momme weight adds durability, but the wrong dimensions cancel out the smoothness buyers pay for.
For UK buyers, this mismatch is common, since Blissy and Mulberry Park Silks are cut to US measurements. Mayfairsilk sizes its pillowcases to UK Standard and Super King dimensions from the start, so the fit issue doesn't come up.
Mayfairsilk Pillowcases
Mayfairsilk pillowcases are woven from Grade 6A long-fibre mulberry silk at 25 momme, roughly 108.5 g/m². That is 13.6% more silk per square inch than 22 momme silk and over 30% more than 19 momme silk. Mayfairsilk finishes the fabric with a commissioned matte treatment rather than a high-sheen finish, which is the most visible difference from the charmeuse finish the other two brands use.
Reviews
Customer feedback concentrates on fabric weight and presentation. Buyers who have owned silk pillowcases from other brands describe the fabric as noticeably heavier and better finished, and the gift box packaging comes up repeatedly. Reviewers with curly hair, rosacea, and other sensitive skin conditions report that the matte surface suits them, and several mention buying a second after the first.

Reviewers highlight the pillowcase's heavier fabric weight, matte finish, and elegant gift box presentation.
Pros
Mayfairsilk cuts to UK bedding conventions, with a Standard at 50 x 75cm, the UK standard pillow size (equivalent to a US Queen), and a Super King at 50 x 90cm for Super King and Emperor beds. Stock sits in a UK warehouse, so orders placed before 1 pm Monday to Thursday dispatch the same day for next-working-day delivery. Its 30-night sleep guarantee lets customers use the pillowcase before deciding, and international orders ship on a DDP basis with nothing owed on arrival.
Cons
The limited-edition prints, such as Emerald Garden, Savannah Bloom, and Dream Rider, are produced in small batches and are not always restocked, so a colour customers like may disappear. The envelope closure is also fixed, with no zip alternative for anyone who prefers a fully enclosed pillow.

Mayfairsilk's limited-edition prints like Emerald Garden are produced in small batches and may not be restocked quickly once sold out.
Blissy Pillowcases
Blissy is 100% mulberry silk at 22 momme, Grade 6A, OEKO-TEX® certified by Hohenstein Laboratories, and machine washable on a gentle cycle. The brand reports over two million pillowcases sold and holds a Good Housekeeping Best Bedding award.
Reviews
The white Standard pillowcase carries just over 33,000 reviews. Recurring themes are cooler sleep, hair that stays untangled overnight, and no pillow creases in the morning, with the zip closure often praised for keeping the pillow snug.
The on-site reviews skew almost entirely toward five stars, so they offer little sense of where the pillowcase underperforms. Sizing questions from UK buyers appear in the product Q&A rather than in the reviews themselves. A minority of four-star reviewers note that the fabric loses some of its shine after the first wash.

Not every reviewer sees miraculous results, with some noting the silk loses its shine after the first wash. (Image source: Blissy)
Pros
The 60-night money-back guarantee is the longest window of the three. Colour choice extends beyond 100 options, including licensed prints, and the hidden zip fully encloses the pillow, which suits sleepers who move a lot.
Cons
Sizing follows US conventions: 20 x 26 inches for Standard, 20 x 30 for Queen, and 20 x 36 for King, so a UK pillow at 50 x 75cm does not match the Standard cleanly. The site also runs continuous countdown timers and rotating multi-buy offers, which makes the standing price harder to establish at a glance.

Blissy offers 22-momme, Grade 6A mulberry silk pillowcases with over 100 colour options and a 60-night guarantee. (Image source: Blissy)
Mulberry Park Silks Pillowcases
Mulberry Park Silks is a woman-led company based in Branford, Connecticut, and the only brand here offering a momme-weight option. Pillowcases come in 19, 22, and 30 momme, all Grade 6A mulberry silk with OEKO-TEX® Standard 100 certification, in either an extra-deep envelope closure or a colour-matched hidden zip.
Reviews
Published customer feedback is thinner than for the other two, and the brand instead foregrounds editorial coverage, featuring its press pages on Better Homes & Gardens and Oprah Daily. It also publishes independent laboratory testing showing its 22 momme silk generated 34% less friction than premium cotton on multi-ethnic hair samples, reviewed by two board-certified physicians.
The testing gives a measurable basis for the hair claims, though the limited volume of individual reviews makes day-to-day performance across colours and momme weights harder to gauge.

Limited individual reviews make it harder to assess everyday performance across Mulberry Park Silks' colours and momme weights. (Image source: Trustpilot)
Pros
Choosing your own momme weight is uncommon, with a lighter 19 momme, a mid-weight 22 momme best seller, and a dense 30 momme available. Closure is a free choice for most colours, and the size range extends to Euro Sham, alongside Standard, Queen, and King.
Cons
Returns are accepted within 30 days, but only for unused, unwashed pillowcases in the original packaging, inspected under UV light, so you can't sleep on one first. UK buyers also cover shipping, duties, and customs handling on the way in, and all return shipping and customs costs on the way back.

Mulberry Park Silks offers pillowcases in 19, 22, and 30 momme weights with Grade 6A mulberry silk and OEKO-TEX® certification. (Image source: Mulberry Park Silks)
Blissy vs Mulberry Park Silks vs Mayfairsilk: Comparison Table
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Feature |
Mayfairsilk |
Blissy |
Mulberry Park Silks |
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Pillowcase momme weight |
25 momme |
22 momme |
19, 22, or 30 momme |
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Silk grade |
Grade 6A mulberry |
Grade 6A mulberry |
Grade 6A mulberry |
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Finish |
Matte |
Charmeuse sheen |
Charmeuse |
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Closure |
Envelope |
Hidden zip |
Envelope or zip |
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Sizes |
UK Standard 50x75cm, Super King 50x90cm |
Standard, Queen, King (US sizing) |
Standard, Queen, King, Euro Sham |
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Certification |
OEKO-TEX® Standard 100 |
OEKO-TEX® Standard 100 (certification body: Hohenstein Laboratories) |
OEKO-TEX® Standard 100 |
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Trial or returns |
30-night sleep guarantee |
60-night money-back guarantee |
30 days, unused and unwashed only |
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Ships to UK from |
UK warehouse, duties paid |
Overseas |
United States, buyer pays duties |
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Visible review base |
140–159 per colour |
33,693 on white Standard |
Editorial features, low review volume |
Get the Right Fit with Mayfairsilk's UK-Sized Silk Pillowcases
Choosing between these three brands comes down to weave density, pillow fit, and how forgiving the return policy is if the silk doesn't suit your skin or hair. Grade and certification are equal across all three, so those measurable differences decide comfort and value more than marketing does. Getting the sizing wrong undoes the benefit no matter which brand you pick.
At Mayfairsilk, we offer 25 momme silk pillowcases with a matte finish, cut to UK Standard and Super King dimensions, and dispatch from our UK warehouse for next working day delivery. Browse the collection and put one on your own pillow with 30 nights to change your mind.
Frequently Asked Questions (FAQs)
Is 22 momme silk enough for a pillowcase?
Yes. At 22 momme, the fabric is dense enough to give the smooth, low-friction surface silk is bought for. Higher weights add thickness and resistance to snagging, rather than changing how the silk behaves against hair and skin, so the practical gains from 25 momme are durability and hand feel.
Does an envelope or zip closure work better for pillowcases?
Zips hold the pillow fully enclosed, which suits restless sleepers, while envelope closures have no hardware to press against your face. Envelope openings can work loose on an undersized pillow, so the closure matters less than getting the dimensions right for the pillow you already own.
How often should a silk pillowcase be washed?
Every other week suits most people, since silk absorbs less moisture from skin and hair at the fabric surface than cotton does. Wash separately on a delicate cycle below 30°C using a pH-neutral detergent made for silk; avoid fabric softeners and tumble drying, and dry flat between two cotton towels.
How long does a silk pillowcase last?
With regular washing and correct care, expect several years of daily use before the fabric shows wear, with heavier weights lasting longer. Heavier momme weights hold up longer because there is more fibre in the weave. A silk-specific detergent and skipping the tumble dryer make the biggest difference.
What does Mayfairsilk's matte finish change?
Most silk pillowcases use a charmeuse weave with a visible sheen. Mayfairsilk uses a commissioned finishing process that creates a matte surface with rich lustre, which suits bedrooms where glossy fabric would look out of place. The smoothness and thermoregulating behaviour of the silk are unchanged.
*Note: The prices and product listings mentioned above are approximate and may vary over time or by location. Actual costs can differ based on pricing policies, provider experience, and market conditions.




