What's Included

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compost

Smooth & Natural

Made with 100% organic cotton sateen, our duvet cover is top quality, moisture controlling wicking and luxuriously smooth to the touch, completing the unique experience of sleeping in a SONU. Learn more about thread count & quality...

ac_unit

Hypoallergenic & Moisture Controlling

Excellent temperature control throughout the night so you're comfortably warm in winter and relievingly cool in summer, while free of harmful chemical and dyes and resistant to causing allergic reactions.

recycling

Renewable, Sustainable & Fire Resistant

We're proud to partner with the award-winning company, "Sleep & Beyond", renowned for their organic and top quality wools and bedding materials, renewable and sustainable practices, and industry leading safety standards.

straighten

Set Contents

1 duvet cover and 2 pillow shams (1 pillow sham for Twin). Duvet cover dimensions: Twin: 68" x 88", Queen: 92" x 92", King: 104" x 92". Twin and Queen sets come with Queen pillow shams measuring 20" x 30". King sets come with King pillow shams measuring 20" x 36".

verified

5 Year Warranty

Guaranteed high-quality construction that lasts.

local_shipping

Free Shipping

Your order includes shipping to anywhere within the continental U.S.
* Extra charge to ship to Alaska and Hawaii. We cannot ship to PO Boxes or APOs.

See Terms & Conditions for Law Labels and more details.

The SONU Duvet Cover Set

Name: The SONU Duvet Cover Set
Brand: SONU Sleep
SKU: OTDCG
Price: 169.0 USD
Availability: InStock
Rating: 4.8 (215 reviews)

★★★★★

We have partnered with "Sleep & Beyond", producer of top quality organic cotton and wool bedding products, to bring you The SONU Duvet Cover Set - designed to pair with The SONU Comforter and your Sleep System for premium temperature control and comfort throughout the night.

Size

TWIN

FULL

QUEEN

KING

Color

SLATE

IVORY

WHITE

Quantity

1 Pack

2 Pack

BUY MORE THAN 2...

PAY NOW

$169

PAY MONTHLY

OUR BIGGEST DEAL EVER

SAVE UP TO $648 FOR A LIMITED TIME

SONU Sleep System

★★★★★

Purchase Any Mattress &
Receive $200 OFF Plus A
$150 Gift Card & 2 Deluxe Pillows FREE

$150 SONU Gift Card + 2x Deluxe Pillows

★★★★★

$150 + $298 FREE

ADD FREE ITEMS TO CART

SAVE ON ESSENTIALS

10% OFF WITH MATTRESS PURCHASE

SONU Bed Frame

★★★★★

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SONU Base

★★★★★

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SONU Muslin Blanket

★★★★★

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SONU Comforter

★★★★★

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SONU Duvet Cover Set

★★★★★

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SONU Comfort Insert

★★★★★

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★★★★★

“I cannot get over the sheets. I washed them and put them on the bed and they are the softest and most comfortable sheets I have ever owned. I am VERY picky and notice everything.”

Kevin H.

San Diego, CA

Time to Sleep Like Never Before

Watch the videos below to learn how you're about to get the best night's sleep of your life.

Finally Rest Naturally

Unmatched Side Sleeping Comfort

The SONU Experience

Life with a SONU

Game Changing Innovations

Trusted Reviews From Side Sleepers Nationwide

Shoppers and their reviews verified by Fera.ai

Thank YOU! Best mattress out there.
★★★★★
“After being a gymnast for 15 years, I haven't felt this much relief from the pain in my shoulders and my hips while sleeping!! Thank you!”
Steph C.
VERIFIED SHOPPER

YUMA, AZ

Highly recommended!
★★★★★
“Creates the perfect space for your arm if you're a side sleeper. Changed the way I sleep forever.”
Justin S.
VERIFIED SHOPPER

ENTERPRISE, MS

AMAZING
★★★★★
“So I actually own one of these. It's AMAZING. Yes it will take you a few weeks to get "used" to it... But that said, you will be AMAZED at how great your shoulders feel in the morning. Just unreal. Like sleep a full 8 hours without waking up type of sleep.”
Jason R.
VERIFIED SHOPPER

Buffalo, NY

Excellent!
★★★★★
“I have very bad neck and back issues and this mattress is a dream! If you are a side sleeper you will love it and even if you like to sleep on you back you will love it! Very comfortable and totally worth the money!”
Grace L.
VERIFIED SHOPPER

MARTINSVILLE, VA

Fantastic!
★★★★★
“i have suffered from shoulder pain while sleeping for several years, i had just about given up... then i saw this bed and decided one last try. i can't begin to explain what it feels like to sleep through an entire night... for the first time in 20 years the first weekend i had it. I'm so impressed with this bed... because what they are making is making a difference in people's lives.”
Crystal G.
VERIFIED SHOPPER

NEW PALEST., IN

Lives up to the hype
★★★★★
“This comfort channel they made is next level. I never imagined that I would be able to put my arm in the mattress. Takes all the pressure off my shoulder, which I so so need. YES”
Kim J.
VERIFIED SHOPPER

CAPE CORAL, FL

Highly recommended!
★★★★★
“I’m a side sleeper and I used to wake up with a dead feeling arm from lying on it all night. Finally a mattress with a pocket for my arm. I tried all the pillows and even very expensive mattresses in the past, but nothing cured my circulation problems until I got the sonu sleep mattress. I love it!”
Nic D.
VERIFIED SHOPPER

Chicago, IL

Fantastic!
★★★★★
“...Sonu mattresses are in a league all by themselves. This is the most comfortable bed I have ever slept on. I have no more shoulder pain and numbness. I can now sleep through the night and not wake up in pain. If anyone is even thinking about getting a Sonu sleep system don’t think anymore. Pull that trigger. I 100% gaurentee you will not be disappointed.”
Christopher B.
VERIFIED SHOPPER

GRANTVILLE, PA

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Frequently Asked Questions

The SONU Sheets are made from top quality 100% long staple cotton with 300 thread count for a smooth, cooling, breathable and luxurious feel to the touch.

Please note that contrary to popular belief, thread count does not necessarily equate to quality and smoothness, and that a thread count of 300 for high-end long staple cotton is top quality. Rest assured, we have selected the best materials to make sure these beautiful sheets perfectly compliment and complete the unique SONU sleeping experience.

The short answer is no! Contrary to common belief, higher thread count does not equal higher quality sheets. A better-quality fiber with a lower thread count will feel softer and stand up to washing better than a lower-quality fiber with a higher thread count. The thread count metric has been hyped as a type of gimmick by manufacturers to be able to sell low quality products for higher prices.

We’ve been trained to associate high count numbers with luxury - after all, we need some way to measure quality. But if you run this logic by any textile expert, you’ll be met with adverse information, as this assumption is incorrect. As linen expert Julian Tomchin told The New York Times, “once you get beyond 400 threads per square inch, be suspicious.” ¹

By definition, thread count is simple - it's the number of threads woven into one square inch of fabric, by adding the verticals (called the “warp”) to the horizontals (the “filling”). But in reality, some manufacturers aren’t that straightforward. Think about it - only so many pieces of thread can fit into this set amount of space. It turns out that this means the number for a good thread count is between 300 and 400, depending on breathability and other performance goals. That means if you see sheet sets touting 600, 800 or 1000 thread count, the manufacturer has employed a deceivingly creative method to reach that number in a ploy to be able to raise the price!

There are many factors that go into what produces a quality sheet product, and thread count is only a small portion of the equation. Fabric content, fiber quality and finish are the big ones. Here at SONU, we’re proud to bring you top quality materials by paying close attention to the factors that actually matter when it comes to our custom sheets. After thorough testing of sheet materials in conjunction with our SONU Sleep System mattress, we’ve determined the best performance with our 300 thread count long staple cotton. Any higher thread count would diminish our ideal breathability and performance goals.

We’ve found the sweet spot with our top quality 100% cotton fabric for its heat wicking, breathability, durability and high level of softness - available in three colors to suit different decors and personal preferences. Please visit the SONU Sheets page for more details.

¹ Quote source: https://www.nytimes.com/2009/01/08/garden/08shop.html

No, the patented SONU fitted sheet within each SONU Sheet Set is required by the SONU mattress to fit into the Comfort Channel's unique negative space.

Twin XL Set
1 FITTED SHEET: 38" x 80" x 17"
1 FLAT SHEET: 76" x 100"
1 PILLOWCASE: 20" x 30"

Full Set
1 FITTED SHEET: 54" x 75" x 17"
1 FLAT SHEET: 92" x 100"
2 PILLOWCASES: 20" x 30"

Queen Set
1 FITTED SHEET: 60" x 80" x 17"
1 FLAT SHEET: 98" x 100"
2 PILLOWCASES: 20" x 30"

King Set
1 FITTED SHEET: 76" x 80" x 17"
1 FLAT SHEET: 114" x 100"
2 PILLOWCASES: 20" x 36"

Cali King Set
1 FITTED SHEET: 72" x 84" x 17"
1 FLAT SHEET: 110" x 104"
2 PILLOWCASES: 20" x 36"

Yes! One SONU Sheet Set in white comes included with every SONU mattress purchase. Additional sheet sets and colors must be purchased separately.

SEARCH ALL FAQs

What Is A Negative Space Mattress?

Photo of the SONU Sleep System from the foot of the mattress with light and dark grey fabric on a black background.

THE COMPLETE GUIDE

Learn about the reasons we created this unique sleep system, how your old mattress falls short, and the game changing benefits that you'll enjoy every day with a SONU.

Read this informative article and others on our blog, Comfort & Slumber, by The SONU Editorial Team.

THE SONU BLOG

Chiropractor Recommended

“The SONU mattress allows for dramatic improvement in ergonomic support, resulting in better sleeping patterns, and an increase in the patient’s comfort and overall wellbeing.”

- Dr. James Hogan

Chiropractic Physician
Los Angeles, California

Read more about Dr. Hogan and how The SONU Sleep System can help you in the same ways as his patients.

MEET DR. HOGAN

Computer rendering of man with glowing red shoulder pain on blue background.

Customized Comfort

The SONU Comfort Insert fills in one side of the Comfort Channel, making the SONU Sleep System more akin to a flat mattress, but still with give for your shoulders. This versatility can be helpful for many scenarios including couples who sleep differently from one another (e.g. a side sleeper and a back sleeper) and for those who simply prefer less space in the Comfort Channel.

THE SONU COMFORT INSERT

NATCA Approved

The National Air Traffic Controllers Association has selected SONU as their official partners in the sleep industry, giving their members higher quality rest for their highly important careers.

Read more about NATCA and how the SONU Sleep System is helping members of the aviation industry across the nation.

ABOUT NATCA

Photo of an airplane on the runway at sunset.

SONU Social

“OMG. I'm going to cry with joy!!! I am ordering this NOW!”

Jason R.

“This is the mattress of my dreams. 😭😭”

@angelareed05

“I need this more than anything I've ever needed”

Stephanie B.

“whoever designed this needs a special place in heaven lol”

Antuwan C.

“My shoulders start crying tears of joy when i seen this”

@jondoemrnobody

“Zach F. the perfect mattress”

Ali F.

“I need this!!!!!! My arm hurts or is asleep every morning!!!!”

Rachel S.

“Jake - Game changer! 😳😍”

Lewis E.

“@marc.munoz.77 Finally something for folks with broad shoulders who want to sleep on the side.”

@mechkitten

“Genius. Seriously what I've wanted.”

Hailey M.

“Omg what a great idea. Now I can sleep on my belly without my arms all weird under me 🤣”

Krissie S.

Made In The U.S.A.

Image of the red, white and blue U.S. flag

The SONU Sleep System was designed and developed in California, and is manufactured only in the United States - made with the highest quality materials and attention to detail for side sleepers everywhere.

* SONU Bedding and several SONU Supports are imported products. All other SONU products are made in the United States.

Designed To Work Together

The Patented SONU Sleep System Mattress with Comfort Channel against a white background.

The SONU Sleep System

Hybrid

$2,099 $1,899 ★★★★★

It is finally time to immerse into comfort, and sleep like never before.

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The SONU Sleep System's custom made cooling sheets, folded & stacked in different colors. They are white, cream and slate, from top to bottom.

The SONU Sheets

$159 ★★★★★

Soft, cooling and sustainable, with the Comfort Channel built in to fit your SONU.

MORE DETAILS

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A Top Pillow made specifically for the SONU Sleep System against a white background.

The SONU Top Pillow Deluxe

$129 ★★★★★

The perfect amount of support and malleability to complement your SONU.

MORE DETAILS

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Try For 100 Nights

If the SONU Sleep System somehow isn't for you, let us know and we'll come and get it.

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