The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
The SONU Sheets
What's Included

Comfort Channel Built In

The patented SONU Sheets are custom-made to fit the unique negative space of the SONU Sleep System. Please note that the SONU fitted sheet included in each set is a requirement, as no other fitted sheet is compatible with the SONU mattress.


Smooth & Cooling

Made from 100% long staple cotton, our sheets are top quality, heat wicking and luxuriously smooth to the touch, completing the unique experience of sleeping in a SONU. Learn more about thread count & quality...


Set Contents

Each sheet set comes with 1 fitted sheet with built in SONU Comfort Channel, 1 flat sheet, and 2 pillowcases (1 pillowcase for Twin XL). Twin XL and Queen sets come with Queen pillowcases measuring 20" x 30". King and Cali King sets come with King pillowcases measuring 20" x 36".


White Set Included

Please note that one SONU Sheet Set in white comes included with every SONU mattress purchase. Additional sets and colors must be purchased separately.


1 Year Warranty

Guaranteed high-quality construction that lasts.


Free Shipping

Your order includes shipping to anywhere within the continental U.S.
* Extra charge to ship to Alaska and Hawaii

The SONU Sheets

Custom made to fit the Comfort Channel of The SONU Sleep System, the SONU Sheets are soft to the touch, cooling and sustainableΒ to provideΒ superior comfort, breathability and longevity.
Regular price

Buy 2 and get 20% off the second




Only 9 in stock
1x SONU Sheet Set
Buy The Mattress &
Add 2 Deluxe Top Pillows
Free With Discount Code
2x SONU Deluxe Top Pillows
$258 FREE
Free Shipping
Free Shipping *
Made for SONU
Made for SONU
1 Year Warranty
1 Year Warranty
We're here to help.

β€œI 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.
Unmatched Side Sleeping Comfort
The SONU Experience
Life with a SONU
Game Changing Innovations
Real Customers, Real Reviews
Shoppers and their reviews verified by
Thank YOU! Best mattress out there.
β€œAfter 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.
Highly recommended!
β€œCreates the perfect space for your arm if you're a side sleeper. Changed the way I sleep forever.”
Justin S.
β€œSo 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.
Buffalo, NY
β€œI 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.
β€œi 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.
Lives up to the hype
β€œThis 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.
Highly recommended!
β€œI’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.
Chicago, IL
β€œ...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.
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, β€œonce 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 β€œwarp”) to the horizontals (the β€œfilling”). 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:
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"

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.
Photo of the SONU Sleep System from the foot of the mattress with light and dark grey fabric on a black background.
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.
β€œThe 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.
Computer rendering of man with glowing red shoulder pain on blue background.
Photo of the SONU Comfort Insert Pillow in dark grey fabric on a black background.
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.
SONU Social
β€œOMG. I'm going to cry with joy!!! I am ordering this NOW!”
Facebook LogoJason R.
β€œThis is the mattress of my dreams. πŸ˜­πŸ˜­β€
Instagram Logo@angelareed05
β€œI need this more than anything I've ever needed”
Facebook LogoStephanie B.
β€œwhoever designed this needs a special place in heaven lol”
Facebook LogoAntuwan C.
β€œMy shoulders start crying tears of joy when i seen this”
Instagram Logo@jondoemrnobody
β€œZach F. the perfect mattress”
Facebook LogoAli F.
β€œI need this!!!!!! My arm hurts or is asleep every morning!!!!”
Facebook LogoRachel S.
β€œJake - Game changer! πŸ˜³πŸ˜β€
Facebook LogoLewis E.
β€œ@marc.munoz.77 Finally something for folks with broad shoulders who want to sleep on the side.”
Instagram Logo@mechkitten
β€œGenius. Seriously what I've wanted.”
Facebook LogoHailey M.
β€œOmg what a great idea. Now I can sleep on my belly without my arms all weird under me πŸ€£β€
Facebook LogoKrissie 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.
* The SONU Sheets, Support Pillowcases and Mattress Protectors are imported products. All other SONU products are made in the United States.
Designed To Work Together
The SONU Sleep System

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

The SONU Sheets

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

The SONU Top Pillow Deluxe

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

Try For 100 Nights

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

  • Free Shipping

  • In-Home Trial Period

  • Hassle-Free Returns