What's Included

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Comfort Channel Built In

The SONU Mattress Protector is custom-made to fit the unique negative space of the SONU Sleep System. Please note that no other mattress protector is compatible with the SONU mattress.

water

Waterproof Protection

The waterproof material protects the entire surface of your mattress and its Comfort Channel, keeping it clean and prolonging its life by guarding against dirt, spills and more.

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Quiet Materials

The layers of the waterproof material are soft and sound dampening, so they protect your mattress without sacrificing comfort.

fit_screen

Stretch Fit

The active stretch materials hug the sides and surface of your SONU to prevent shifting during the night, while providing ample space in the Comfort Channel.

verified

1 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 Mattress Protector

Name: The SONU Mattress Protector
Brand: SONU Sleep
SKU: SS441
Price: 89.0 USD
Availability: InStock
Rating: 4.8 (217 reviews)

★★★★★

The SONU Mattress Protector fits over the SONU Sleep System and lines the Comfort Channel to provide waterproof protection for your entire mattress. Prevent stains and prolong the life of your SONU with our custom-made protector.

Quantity

1 Pack

2 Pack

Buy 2 and get 20% off the second

BUY MORE THAN 2...

PAY NOW

$89

PAY MONTHLY

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HOLIDAY SALE

SAVE UP TO $577 FOR A LIMITED TIME

SONU Sleep System

★★★★★

Purchase Any Mattress &
Receive $150 OFF Plus A Mattress Protector & 2 Deluxe Top Pillows FREE

Mattress Protector + 2 Deluxe Pillows

★★★★★

Photo of a custom mattress protector and two stacked SONU Deluxe Top Pillows in white with black piping and dark grey gussets.

$129 + $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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Free Shipping *

Made for SONU

1 Year Warranty

What's Included

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Comfort Channel Built In

The SONU Mattress Protector is custom-made to fit the unique negative space of the SONU Sleep System. Please note that no other mattress protector is compatible with the SONU mattress.

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Waterproof Protection

The waterproof material protects the entire surface of your mattress and its Comfort Channel, keeping it clean and prolonging its life by guarding against dirt, spills and more.

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Quiet Materials

The layers of the waterproof material are soft and sound dampening, so they protect your mattress without sacrificing comfort.

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Stretch Fit

The active stretch materials hug the sides and surface of your SONU to prevent shifting during the night, while providing ample space in the Comfort Channel.

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1 Year Warranty

Guaranteed high-quality construction that lasts.

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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.

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★★★★★

“...This set of sheets is really nice, it feels nice and soft and breathable... Overall I am just really digging this mattress.”

Owen Poole

Mattress Expert for CNET.com

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

MORE REVIEWS

Frequently Asked Questions

No, the patented shape of the SONU Mattress Protector is required by the SONU mattress to fit into the Comfort Channel's unique negative space.

Twin XL
38" x 80" x 17"

Queen
60" x 80" x 17"

King
76" x 80" x 17"

Cali King
72" x 84" x 17"

The SONU Mattress Protector uses polyester with thermoplastic polyurethane to provide the comfortable waterproof protection, while the siding uses a blend of polyester and spandex to firmly hug the protector to your mattress.

Currently all SONU products are only available in the United States.

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 $1,949 ★★★★★

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.

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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.

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