Midnight Blue Silk Duvet Set - MayfairSilk

Midnight Blue Silk Duvet Set

Pure Silk Bedding

£950

£1,061

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Size:

Size Chart

Our comprehensive size chart for pillowcases, fitted sheets, flat sheets, duvet covers and cushion covers make shopping easy. You’ll find all the information you need for the perfect fit.

These size charts have been designed to ensure the finest silk bedding you are purchasing is the right size for your bed - whether that be a single, double, king, superking or emperor. If you don't recall what size you have, all you need is a tape measure and compare with the chart below.

BEDDING SIZE CHART - UK BED SHEET SIZES

Type	Your Bed W x L	Duvet Cover W x L	Deep Fitted Sheet W x L x D	Flat Sheet W x L
UK Single	90 x 190 cm (3ft x 6ft 3 in \| 35.43 x 74.8 in)	140 x 200cm (55 x 79in)	90 x 190 x 35 cm (35 x 75 x 13.7 in)	180 x 275 cm (71 x 108 in)
UK Double	135 x 190 cm (4ft 6 in x 6ft 3 in \| 53.15 x 74.8 in)	200 x 200 cm (79 x 79 in)	140 x 190 x 35 cm (55 x 75 x 13.7 in)	230 x 275 cm (91 x 108 in)
UK King	150 x 200 cm (5ft x 6ft 6 in \| 59 x 78.7 in)	230 x 220 cm (90 x 87 in)	150 x 200 x 35 cm (59 x 79 x 13.7 in)	275 x 275 cm (108 x 108in)
UK Super King \| European Grand King	180 x 200 cm (6ft x 6ft 6 in \| 71 x 78.7 in)	260 x 220 cm 102 x 87 in	180 x 200 x 35 cm (71 x 79 x 13.7 in)	305 x 275cm (120 x 108 in)
UK Emperor \| European Super King	200 x 200 cm (6ft 6 in x 6ft 6 in \| 78.7 x 78.7 in)	290 x 235 cm (114 x 92 in)	200 x 200 x 35 cm (79 x 79 x 13.7 in)	320 x 290 cm (126 x 114 in)

PILLOWCASE SIZE CHART

Selecting the appropriate pillowcase size is essential to ensure a good fit, for both comfort and aesthetics.

Our pillowcase size chart makes it simple to choose the right fit for your pillows, ensuring a good night's sleep and a well-coordinated bedroom. We offer two different pillowcase sizes to fit most standard and super king-sized pillows.

UK Standard Silk Pillowcase 'Queen' (50 x 75 cm | 20 x 30 in):
This is the most prevalent size in the UK and is suitable for single, double, and king-sized beds. In the USA and Australia, this size is referred to as a 'Queen' pillowcase.

When two standard 75cm long pillowcases are placed side-by-side, they cover the width of a UK king-sized bed (1.5m).

UK Super King Silk Pillowcase 'King' (50 x 90 cm | 20 x 36 in):
This size is commonly used on Super King and Emperor-sized beds in the UK. It is suitable for both Super King and Emperor-sized beds. In the USA and Australia, this size is referred to as a 'King' pillowcase.

When two Super King 90cm long pillowcases are placed side-by-side, they cover the width of a UK Super King bed (1.8m).

Refer to the table below for a quick comparison of our two pillowcase sizes

Description	Size (Width x Length)
UK Standard \| US Queen	50 x 75 cm (20 x 30 in)
UK Super King \| US King	50 x 90 cm (20 x 36 in)

CUSHION COVER SIZE CHART & EURO SHAMS

Choosing the correct size of cushion covers and Euro shams is crucial for achieving a polished, professional look for your living spaces.

Our cushion cover size chart and Euro shams guide makes it easy to select the perfect fit for your cushions and pillows.

Whether you’re looking to refresh your bedroom or add a touch of elegance to your living room, selecting the right size is the first step.

Browse our chart below to find the perfect size to match your existing decor and cushion inserts.

Type	Size (Width x Length)
Square	40 x 40 cm (16 x 16 in)
Large Square	50 x 50 cm (20 x 20 in)
Extra Large Square \| Euro Sham	65 x 65 cm (26 x 26 in)
Boudoir \| Rectangle	30 x 50 cm (12 x 20 in)

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Variant

Colour / design: Midnight Blue View all 13 colours & stylesHide colours / styles

This Midnight Blue Silk Duvet Set is part of our Bed Linen collection and crafted from our signature fabric with matching pillowcases, fitted sheet and duvet cover.

Producing our silk sheets begins with selecting only the finest 100% long-fibre Mulberry Silk. From there we employ the latest modern technology with a specialised weave and finishing to produce an exquisite, indulgent, incredibly smooth fabric that's a joy to touch and wrap yourself in.

You will spend ~2,700 hours in bed over the next 12 months, 27,000 hours over the next decade. Sleep is a time when your nervous system has an opportunity to rest, memories are stored and your cells rejuvenate.

High quality sleep leads to high performance and improved health.

There simply isn't a more luxurious, comfortable and therapeutic fabric to sleep in than MayfairSilk.

It's divine to feel against the skin
Regulates temperature in the 'comfort zone',
Keeps your skin and hair hydrated
Hypoallergenic
Dries quickly and stays fresh longer than cotton

When you invest in quality, you look forward to bedtime!

Looking for a Flat Sheet to complete the look?
First, add the Duvet Set to your basket and take a look at the flat sheet options:

What you’ll love

Soft, smooth hand-feel, durable, rich lustre
MayfairSilk® is not glossy - better matching contemporary tastes
Temperature regulating, it maintains an ideal temperature across all seasons for sleeping
Hypoallergenic with strong resistance to dust mites
Maintains skin hydration
All-natural protein fibre that's comprised of 18 amino acids and has a similar pH to your skin
22-Momme Grade 6A 100% Pure Mulberry Silk
Hidden button closure
Machine-washable
Hand-finished
Designed in London and made to last
Requires less frequent washing than cotton
Sustainably produced
Certified Standard 100 by Oeko-Tex®

Set contains:

2 x Silk Pillowcases with Gift Boxes - 25 momme
1x Silk Duvet Cover - 22 momme
1x Fitted Sheet - 22 momme

Mayfairsilk Difference

Crafted in 22 Momme from only the finest grade 6A long-fibre Mulberry Silk with a specially commissioned weave and finishing. This imbues our fabric with its trademark qualities of an incredibly smooth hand-feel, thickness, durability, rich lustre and a refined 'matt' finish.

Certified Standard 100 by Oeko-Tex®:
One of the world's best-known certificates for textiles tested for harmful substances. It stands for customer confidence and high product safety. You can be certain that every component of this product has been tested for harmful substances and is free from all toxic dyes and chemicals.

Design palette:
Our design philosophy is a calming, balanced colour palette playing with contrasts and vibrant highlights to create an aura of beauty and happiness after a long day.

Sizing information

Pillowcase sizes:

Standard: 50x75cm (included for Double / Kingsize Beds)
Superking: 50x90cm (included for Superking / Emperor Beds)

Duvet Cover sizes:

Double: 200 x 200cm (79 x 79in)
Kingsize: 230 x 220cm (90.5 x 87in)
Superking: 260 x 220cm (102 x 87in)
Emperor: 290 x 235cm (114 x 92in)

Fitted Sheet sizes:

Double: 140 x 190 x 30cm (55 x 75 x 12in)
Kingsize: 150 x 200 x 30cm (59 x 79 x 12in)
Superking: 180 x 200 x 30cm (71 x 79 x 12in)
Emperor: 200 x 200 x 30cm (79 x 79 x 12in)

Reference - UK Standard Bed sizes:

Double: 135 x 190cm (4ft 6" x 6ft 3")
Kingsize: 150 x 200cm (5ft x 6ft 6")
Superking: 180 x 200cm (6ft x 6ft 6")
Emperor: 200 x 200cm (6ft 6" x 6ft 6")

Tip: If your mattress is not a standard UK measurement, please measure your mattress with a tape measure and compare with our size chart to see if there is a suitable size. Note the labels are different between countries, so it's best to use a tape measure to check the correct size.

Silk care

Your MayfairSilk® Duvet Set will provide many years of enjoyment when you follow these simple care instructions. Due to its natural properties, you will find it requires less frequent washing than cotton bed linen:

Machine-wash in tepid water (< 30ºC / 86ºF) on delicate cycle.
Or, hand-wash in tepid water (< 30ºC / 86ºF).
Use 'delicate' pH neutral liquid detergent without enzymes.
Do not use bleach, whiteners or fabric softeners.
Do not wring or tumble dry.
Place bed sheet between two cotton towels and press gently. Most of the water will transfer into the towels. Remove, reshape and hang/line dry in the shade.
Use handheld steamer to relax creases if required (using silk attachment), or
Iron on low heat inside out whilst still slightly damp to relax creases.
You can dry clean if required (no trichloroethylene).

Traditionally, silk was made in a low momme fabric which meant it was hand-wash or dry clean only. However, MayfairSilk bed linen is crafted from high momme silk fabric using a special weave so there is more silk per inch. This makes it not only machine washable, but also provides longer durability, smoother hand-feel and deeper lustre.

So that's it. MayfairSilk is surprisingly easy to care for. Keep heat low, pH neutral detergent without enzymes, line dry in the shade. Silk is long lasting (with high momme), all natural, hypoallergenic and sustainably produced. It's truly nature's gift.

Discover for yourself why it has been regarded as the "Queen of Textiles" for over 4000 years. MayfairSilk®, where tradition meets modern design and weaving technology.

Delivery and returns

Delivery

Orders placed before 1pm Monday–Friday are normally dispatched the same day, excluding bank holidays.

International orders may be dispatched the next working day during busy periods, as parcels require additional preparation before courier collection.

All delivery estimates are measured from the dispatch date, rather than the order date.

Standard UK mainland: Free tracked DPD delivery on orders of £50 or more; £3.95 below £50. Expected delivery: the next working day after dispatch.
Scottish Highlands and Islands: Free delivery on orders of £90 or more; £12.95 below £90. Estimated delivery: 2–4 working days.
Northern Ireland: Free delivery on orders of £100 or more; £12.95 below £100. Estimated delivery: 2–3 working days.
Jersey, Guernsey and Isle of Man: Free delivery on orders of £180 or more; £19.95 for orders from £120 to £179.99, or £29.95 below £120. Estimated delivery: 2–3 working days.
International: Tracked DHL Express delivery, with free shipping on orders of US$180 or more to the USA and €180 or more to eligible European destinations. Other destinations have different thresholds and charges. Applicable duties and taxes are calculated and paid at checkout.

Postcode exclusions and dispatch conditions apply. See our Delivery & Shipping page for full rates, destinations and timings.

Returns

Silk pillowcases: Enjoy our 30-night sleep guarantee. Try your pillowcase at home for up to 30 nights; if it isn’t right for you, return it for a refund of the pillowcase purchase price.
Other full-price products: Return within 30 days of delivery, unused, unwashed, unmarked and uncreased, with original packaging in unmarked, resalable condition.
Return postage: You arrange and pay for non-faulty returns to our UK warehouse. If your item is faulty, damaged or incorrect, contact us so we can arrange a solution at no cost to you.
Exceptions: Sale items are excluded from the extended 30-day policy. Gift cards are non-refundable except where required by law. Your statutory rights are unaffected.

Email orders@mayfairsilk.com before returning anything. See our Guarantee & Returns page for full conditions and exchange instructions.

Midnight Blue Silk Duvet Set

£950

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The Mayfairsilk difference

More to silk than meets the eye

Momme (pronounced ‘mom-ee’) measures the weight of silk fabric. A higher number means more silk by weight in the same area of fabric. It is one part of the picture, alongside the fibre grade, weave and finishing.

Our bedding sets bring together 22 momme silk bed linen and 25 momme silk pillowcases, all in Grade 6A Mulberry silk with our signature soft matte sheen. See the product description for the pieces included in this set.

What is momme? Read the full guide

22 & 25momme

22 momme bed linen · 25 momme pillowcases

Weight: Momme
Fibre grade: 6A Mulberry silk
Finish: Soft matte sheen

Weight, fibre grade and finish each tell a different part of the story.

Our signature finish

A softer sheen. A modern kind of silk.

Silk needn’t have a high-gloss look. Our weave and finishing give Mayfairsilk its distinctive matte appearance, with a subtle lustre that catches the light.

Rich colour, a smooth hand feel and a relaxed, contemporary look; silk that feels as beautiful as it looks in your bedroom.

A high-gloss look

Our soft matte sheen

Finish illustration. Colour and lighting affect how silk appears; see the product photographs for this colour.

Explore our silk, from fibre to finish

Customer reviews

Customer Reviews

Overall rating: 5.0 / 5 from 12 reviews.

Customer photo review of Midnight Blue Silk Duvet Set

Amazing Quality

Mrs P. 5/5 Verified August 20, 2023

Midnight Blue Silk Duvet Set

Love,love,love

Helen U. 5/5 Verified February 23, 2023

Midnight Blue Silk Duvet Set

Next level of comfort! Love the matte finish and the packaging.

Mia B. 5/5 Verified December 28, 2022

Midnight Blue Silk Duvet Set

This is my second Mayfair silk duvet set. The blue really complements the hummingbird pattern pillowcases. I absolutely adore this bed set 😊

Paula R. 5/5 Verified February 15, 2021

Midnight Blue Silk Duvet Set

I bought these midnight blue sheets on preorder and they have been worth the wait - had the best night’s sleep last night and the colour is beautifully rich.

Nadia F. 5/5 Verified November 23, 2020

Midnight Blue Silk Duvet Set

Very pleased with my purchase

Arthur P. 5/5 October 2, 2026

Midnight Blue Silk Duvet Set

I recently invested in the Mayfairsilk Midnight Blue Duvet Set and it has completely transformed my sleep. These silk bed sheets are made from the finest Grade 6A Mulberry silk in 22 momme for the duvet cover and 25 momme for the pillowcases, and the difference in quality is unmistakable. The fabric has a soft touch matte finish that feels incredibly smooth and cool against the skin, while the deep midnight blue colour brings a rich, elegant look to my bedroom. Sleeping in these silk bed sheets feels like a spa experience every night. They’re naturally thermoregulating, so I stay comfortably cool in summer and warm in winter. My skin feels more hydrated in the mornings, and my hair is noticeably smoother with fewer tangles.

Victoria E. 5/5 Verified August 13, 2025

Midnight Blue Silk Duvet Set

Although I haven't had a chance to enjoy my luxurious silk bed linen set yet, I am extremely impressed with both the quality and the presentation of the set. In addition, the delivery was extremely speedy and everything was very carefully packaged.

Julia R. 5/5 Verified October 5, 2024

Midnight Blue Silk Duvet Set

Very hight quality product

George R. 5/5 Verified December 6, 2023

Midnight Blue Silk Duvet Set

Truly amazed as how comfortable and luxurious it is to sleep head to toe in silk. Excellent products.

Thomas B. 5/5 Verified December 28, 2022

Midnight Blue Silk Duvet Set

i thought my 1000 count sheets were luxury. and they are. but there's luxury and then there's luxury. these are the latter.

Omar H. 5/5 Verified May 4, 2022

Midnight Blue Silk Duvet Set

Hesitant to spend on a full set at first, I have enjoyed sleeping on mayfairsilk so much that I’ve just bought another set. Highly addictive.

Lena M. 5/5 Verified April 20, 2022

Midnight Blue Silk Duvet Set

Express Worldwide Delivery (DDP)

Free delivery:
UK Mainland £50+
Most EU countries €180+
USA $180+
Rest of world £200+
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30-night Pillowcase Guarantee

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See the guarantee.

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