What's Included

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Custom Sheet SetFREE$249 Value for King

Every SONU comes with a set of custom white sheets designed to fit the Comfort Channel of your new mattress. For additional details and colors visit the SONU Sheets page.

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Comfort Channel

The only mattress that allows your arms and shoulders to fully immerse into the bed, made possible by the Comfort Channel.

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Support Pillows

Each SONU Sleep System comes with 4 Support Pillows that fill the Comfort Channel (2 for Twin XL) and matching pillowcases. On top of these Support Pillows, two top pillows per sleeper is recommended. The SONU Top Pillow Deluxe has been engineered to pair with the system.

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Cooling Cover

Woven into the cover is a PCM, or phase change material, that draws heat away from the sleeper, so it is cool to the touch and helps regulate temperatures throughout the night.

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Premium Materials

At 14 inches deep and constructed from 26 pieces of premium high-resilience CertiPUR-US^® certified environmentally friendly foams, the SONU Firm is durable and built to provide ideal support in all the right places. Learn more...

waves

Sink-In Support System

Enjoy full range of motion below the surface, while leveling the spine to enable a satisfyingly balanced comfort impossible to achieve on any other mattress.

layers

Adjustable Layers

Change the resting height of your head to perfectly level your neck while side sleeping. Laterally malleable pillows allow consistent vertical support while accommodating relaxing space for shoulders and arms.

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Channel Waterfall

Soft cover material flows seamlessly down into the Comfort Channel, ensuring all surfaces touched while sleeping are free of cover fabric joins to allow for an all encompassing smooth experience.

verified

10 Year Warranty

Built in the U.S.A. to last, we guarantee the top quality materials and construction of every SONU.

Please note that The SONU Sleep System is not for children 12 years of age or younger. See Terms & Conditions for Law Labels and more details.

The SONU Sleep System
Firm

The Firm mattress is an 8 in firmness, while the Plush is a 4 and the Hybrid is a 6.
Learn more...

Name: The SONU Sleep System - Firm
Brand: SONU Sleep
SKU: SS465
Price: 4699.0 CAD
Availability: InStock
Rating: 4.8 (215 reviews)

★★★★★ 4.8

ON SALE LUXURIOUS SUPPORT

Introducing the world's first mattress designed for side sleepers. Finally allow your arms to rest where they're meant to, so you can get the best sleep of your life. Show more...

PLUSH

HYBRID

FIRM

Firm is ideal for sleepers who require extra support in the upper torso area. Select Hybrid for bounce, or Plush if sinking in is more desirable.

FIRMNESS The Firm mattress is an 8 in firmness, while the Plush is a 4 and the Hybrid is a 6.
Learn more...

COOLING On a scale of 1 to 10 the SONU Firm mattress is an 8 in cooling.

SIZE & OPTIONS For dimensions and other size details please visit the Mattress Size Guide...

Which SONU Is Right For Me?

Please let us know a few details below so we can recommend the best SONU mattress for you...

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* Height:

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SONU Comfort Insert

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Free Sheets

10 Year Warranty

What's Included

EXPAND ALL

done_outline

Custom Sheet SetFREE$249 Value for King

Every SONU comes with a set of custom white sheets designed to fit the Comfort Channel of your new mattress. For additional details and colors visit the SONU Sheets page.

king_bed

Comfort Channel

The only mattress that allows your arms and shoulders to fully immerse into the bed, made possible by the Comfort Channel.

lens_blur

Support Pillows

ac_unit

Cooling Cover

Woven into the cover is a PCM, or phase change material, that draws heat away from the sleeper, so it is cool to the touch and helps regulate temperatures throughout the night.

workspace_premium

Premium Materials

waves

Sink-In Support System

Enjoy full range of motion below the surface, while leveling the spine to enable a satisfyingly balanced comfort impossible to achieve on any other mattress.

layers

Adjustable Layers

airline_seat_flat

Channel Waterfall

Soft cover material flows seamlessly down into the Comfort Channel, ensuring all surfaces touched while sleeping are free of cover fabric joins to allow for an all encompassing smooth experience.

verified

10 Year Warranty

Built in the U.S.A. to last, we guarantee the top quality materials and construction of every SONU.

Please note that The SONU Sleep System is not for children 12 years of age or younger. See Terms & Conditions for Law Labels and more details.

Questions?

We're here to help.

Chat with Us

Email Us

★★★★★

“I'm consistently getting better sleep than I have in years and my shoulders, arms, and hands feel great in the morning. If you're pondering the functionality of this mattress, I can tell you this is legit technology and a solid quality build.”

Robert S.

Hillsboro, OR

Every Side Sleeper's Dream

Prepare for comfort you never thought possible. The SONU Sleep System reduces pressures in a way that will rejuvenate you every night. No other mattress even comes close.

The Comfort Channel

The patented Comfort Channel of the SONU Sleep System allows for the full range of motion of the shoulder and arms within the mattress, not just on top. Side sleepers benefit from not needing to roll over to relieve pressure on arms and shoulders constantly, resulting in sound sleep throughout the night.
LEARN MORE

A female sleeper with her arms and shoulders in the Comfort Channel of the SONU mattress with cream sheets.

The Support Pillows

The patented Support Pillows of the SONU are the key to the unique immersive support system. Each SONU has a stack of two layers of Support Pillows, and within each are individual layers particularly engineered to allow the pillow to be laterally malleable while maintaining ideal vertical support.
LEARN MORE

A male sleeper using his smart phone while being ergonomically supported in the SONU mattress with white sheets.

Sink-In Support

The SONU is designed to align the spine while side sleeping, enabling reduced tensions, better breathing and sound sleep throughout the night. This feat is accomplished by allowing the shoulders to immerse into the Comfort Channel, leveling the vertebrae in the neck and upper back, while supporting the upper torso, allowing the hips to sink in, leveling the vertebrae in the lower back.
LEARN MORE

3D rendering of all 26 foam parts of SONU Sleep System in an exploded view to show how it is built.

Upper Torso Relief

The gradating levels within the SONU have been engineered to support the upper torso, commonly the heaviest part of the human body, while allowing the shoulders and arms to immerse into the bed below, dramatically reducing the weight normally required by these areas to support the upper torso. The result is a truly unique level of comfort and an unforgettably relaxing sleeping experience.
LEARN MORE

3D rendering of side sleeper in SONU Sleep System with comfortably aligned spine glowing in green, and below a comparison with a side sleeper on a flat mattress with spine under pressure and glowing in red.

MORE INNOVATIONS GET THE SONU

Loved By The Pros

Professional athletes, celebrities and fitness experts alike all rely on their SONUs to improve recovery, breathing and quality of sleep every night. The result is better rejuvenation and performance every day. Watch these featured reviews and see how SONU helps them all in different ways...

Photo of Pro Basketball Player Natalie Achonwa

DYLAN CREWS

Star Outfielder
Tigers & Nationals

@d.crews25

GILLIAN ROBERTSON

MMA Pro &
UFC Strawweight

@savage_ufc

JACKSON RATHBONE

International Movie Star Known for "Twilight"

@jacksonrathbone

PARKS BONIFAY

Professional Wakeboarder & Red Bull Sports Legend

@parxxx

MIRANDA MAVERICK

MMA Pro &
UFC Flyweight

@fearthemaverick

JALIN TURNER

MMA Pro &
UFC Welterweight

@thetarantula

CHRIS COLE

Professional Skateboarder & Action Sports Champion

@chriscobracole

RYAN PEPIOT

Star MLB Pitcher
Dodgers & Rays

@rpepiot10

BRENDAN ALLEN

MMA Champion & UFC Middleweight

@b_allen185

MACY CHIASSON

MMA Pro &
UFC Bantamweight

@macychiasson

ROB KELLY

Professional Surfer & Cold Water Adventurer

@robkellysurf

NATALIE ACHONWA

Star WNBA Forward
Minnesota Lynx

@natachon11

PAUL BLACKBURN

All-Star MLB Pitcher
Cubs, Mariners & A's

@paulyb_58

JOSH JUNG

Star MLB Third Baseman
Texas Rangers

@josh6jung

CHIDOBE AWUZIE

Star NFL Cornerback
Cowboys, Bengals & Titans

@chido

JULIA AVILA

MMA Pro &
UFC Bantamweight

@ragingpandamma

OSWALDO CABRERA

Power Hitter & Shortstop
New York Yankees

@ocabrera13

DALLIN LEAVITT

Star NFL Safety
Raiders & Packers

@d_lowe2


	Other Mattresses	The SONU Sleep System
Pressure on Arms, Shoulders & Neck
Immersive Support System
Improved Breathing
Pressure Relief
Ergonomic Support


	Plush	Hybrid	Firm
All Foam Construction
Foam & Coil Spring Construction
Maximum Motion Isolation
Additional Bounce & Airflow
Sink-In Cushioning / 4 in Firmness *
Balanced Support / 6 in Firmness *
Bolstered Support / 8 in Firmness *
8 in Cooling Features *
9 in Cooling Features *
Custom Sheet Set & Pillowcase Set Included
10 Year Warranty
* Scale out of 10

The SONU Sleep System
Firm

The Firm mattress is an 8 in firmness, while the Plush is a 4 and the Hybrid is a 6.
Learn more...