The SONU Comfort Insert
The SONU Comfort Insert
The SONU Comfort Insert
What's Included
archive

Fills In Comfort Channel

Turns one half of the Comfort Channel into a flat mattress by closing the gaps and matching the support of the rest of your SONU.

arrow_upward

Versatility For Other Positions

Helps with sitting up in bed if you don't have an adjustable frame, and provides more options for positions other than side sleeping.

published_with_changes

Replaces Support Pillows

Switch between your existing Support Pillows, designed for side sleeping, and the Comfort Insert, designed to convert one half or all of your SONU into a flat mattress whenever needed.

fit_screen

Fitted Sheet Compatibility

If you use two Comfort Inserts to fill in the Comfort Channel entirely, you can then use traditional fitted sheets on the SONU mattress.

ac_unit

Smooth and Cooling Cover

Premium breathable material that is removable for easy washing.

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

The SONU Comfort Insert

The SONU Comfort Insert is an accessory that fills in the Comfort Channel, making the SONU Sleep System more akin to a flat mattress, but still with some give for your shoulders. This versatility can be helpful in 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 Comfort Insert also functions as a backrest for sitting up in a SONU if you don't have an adjustable foundation. A single Comfort Insert fills in only one side of the Comfort Channel of Queen and King size SONUs, and the entire Channel of a Twin XL. So if you'd like to fill in the entire Channel of a Queen or King, please purchase the 2 pack.
Regular price
/

PAY NOW

$99
or

PAY MONTHLY


Size
Buy 2 and get 20% off the second
Only 4 in stock
4TH OF JULY BUNDLE
1x SONU Sheet Set
$189 $151
2x SONU Top Pillows
$178 $160
ADD TO GET 20% OFF SHEETS & 2ND PILLOW
Free Shipping
Free Shipping *
Made For SONU
Made For SONU
1 Year Warranty
1 Year Warranty
Questions?
We're here to help.
Matching Support
On a scale of 1 to 10 the SONU Comfort Insert is a 6.5 in plushness in order to match the rest of the surface of your SONU Sleep System mattress. When the Comfort Insert is in place it is like laying on a flat mattress.
SONU Comfort Insert
FIRM / BOUNCE
SOFT / CRUSH
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.
Life with a SONU
The SONU Experience
Game Changing Innovations
Everyone Loves Their SONUs
Didn't realize what good sleep was!!
★★★★★

For years, I thought I was getting decent sleep. The Sonu has opened my eyes!! WORTH IT

Orin B.
THOUSAND OAKS, CA
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.
YUMA, AZ
Our whole house is sporting SONU now!
★★★★★

We enjoyed our first SONU mattress so much that we replaced our other bedrooms with SONU's as well. These mattresses are amazing!!!

Pedro T.
MIAMI, FL
AMAZING
★★★★★

So I actually own one of these. It's AMAZING. Yes it will take you a few weeks to get "used" to it, because at first the sensation is not unlike feeling as if your about to fall off the bed. 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
SONU - you guys rock!!
★★★★★

I had numerous questions before deciding to purchase! Their chat support quickly answered all my questions! Easy peasy!

Sarah M.
CHARLOTTE, NC
If you read on your phone or tablet in the bed, you need this!
★★★★★

I can comfortably rest my arm in the support channel while reading my tablet at night. This mattress is the absolutely best.

Matthew R.
JACKSONVILLE, FL
Best Wedding Present Ever
★★★★★

My husband and I are absolutely loving this mattress! Thanks Mom and Dad!!!

Lauren S.
NASHVILLE, TN
This mattress lives up to the hype!!!
★★★★★

This comfort channel 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!!

Kim J.
CAPE CORAL, FL
Unbeleivably cozy!!
★★★★★

This mattress is made for my body! I haven't had great sleep like this in years.

Rosie M.
BROOKLYN, NY
Fantastic!
★★★★★

I have a 'frozen shoulder' I’m dealing with, and with my new Sonu Cali King I’m able to sleep on my left side without any pain! It’s great! Highly recommend this new way to sleep!

Larry H.
ANDALUSIA, AL
Frequently Asked Questions
Yes! We produce an accessory called the SONU Comfort Insert that does precisely that. Install the Comfort Insert to fill in one side of the Comfort Channel on Queen and King sizes, and the entire Channel on a Twin XL. Buy the 2 pack to fill in both sides of Queens and Kings.
The SONU Comfort Insert is an accessory that fills in the Comfort Channel, essentially turning the SONU Sleep System into a normal flat mattress. This can be helpful for sitting up in bed if not using an adjustable foundation, or for couples who sleep differently from one another (a side sleeper and a back sleeper, say). A single SONU Comfort Insert fills in only one side of the Comfort Channel of Queen and King size SONUs, and the entire Channel of the Twin XL size. So if you'd like to fill in the entire Channel of a Queen or King, please purchase the 2 pack.
Yes, with the SONU Comfort Insert you can fill in half of the Comfort Channel in order to further customize the mattress to your personal needs.
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 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.
We have partnered with SleePare mattress stores so you can try The SONU Sleep System firsthand at these locations...
SleePare mattress stores logo
Los Angeles, California
WEST COAST
SleePare mattress stores logo
Tysons, Virginia
EAST COAST
SONU Social

Samantha L. our problems are solved

Mandy E.

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

Jason R.

I need this more than anything I've ever needed

Stephanie B.

I need this asap

@zcartr3

Clark.... I'm done looking... This is the one

Jennifer A.

Bobbi S. this might be better than purple.

Garry B.

LMAO!! Man this is nuts.. I’ll take two!

Radhames A.

whoever designed this needs a special place in heaven lol

Antuwan C.

omg I've been thinking about detachable arms since I was a kid!! 😂😂

Tara F.

My shoulder start crying tears of joy when i seen this

@jondoemrnobody

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

@mechkitten

This is the mattress of my dreams. 😭😭

@angelareed05

Milton B. we've talked about this kind of bed for years!

Leslie A.

Cynthia A. my dream bed

Cameron S.

Looks like a really really really good idea

Erin S.

Pretty sure i invented this in my head 20 years ago 🤣🤣 looks awesome!

Sandy C.

Baye C. I’ve dreamed of this

Mollie B.

Zach F. the perfect mattress

Ali F.

Eric D. This is the best idea ever 👌

Deanna S.

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

Rachel S.

🔥🔥🔥🔥🔥 I need

@doewitit

Jake - Game changer! 😳😍

Lewis E.

Cody M. omg.. this is literally exactly what I need 😩

Macy M.

Genius. Seriously what I've wanted.

Hailey M.

Curtis S. babe I need this for when I’m big spoon 😄😘

Emma R.

Omg what a great idea. No I can sleep on my belly without my arms all weird under me 🤣

Krissie S.

I need this I’m tired of numb arm 😂

@manii_mohnii

Baby I need this for my shoulder so we can cuddle! Kim L.

Brandi R.

.....that's AWESOME. 😍 I've been thinking about this since I was a kid and now it exists! Neat. 😁

@theconfusedvampire

Tristan D. LOOK you can snuggle me all night now not just til I'm sleeping 😉😂

Tangi B.

I need this bad. I'm tired of my arms falling asleep

@xybzza
Made In The U.S.A.
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 our loyal customers.
* The SONU Sheets are an imported product. All other SONU products are made in the United States.
Designed To Work Together
The SONU Sleep System
$2,499 $1,899 ★★★★★

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