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Your neck, finally level all night.

Cosari OrthoWing

If you wake up at 3 AM with a dead arm or a stiff neck, your mattress probably isn't the.

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  • 6.5 cm arched cutout gives your bottom shoulder
  • Reversible 12.5 cm / 9.5 cm neck rolls
  • 55D slow-rebound foam holds its height all night
  • 3D honeycomb mesh sides let heat escape
Cosari OrthoWing
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Shaped around how side sleepers actually lie

Six zones that support the neck, clear the shoulder and catch your head when you roll over.

6-Zone Butterfly Contour

Raised side wings for side sleeping, a lower center cradle for back sleeping, a neck roll, a shoulder cutout and sloped arm channels, all in one molded piece.

Level Neck Alignment

The cervical roll fills the space under the curve of your neck so your head stays in line with your upper back instead of tipping toward the mattress.

Breathable Honeycomb Sides

Slate-grey 3D mesh gussets wrap the pillow and let warm air escape when you shift, while the quilted knit top stays soft against your cheek.

Two Heights, One Pillow

Turn it 180 degrees to switch between the 12.5 cm roll for broader shoulders and the 9.5 cm roll for smaller frames or softer mattresses.

How the OrthoWing works

Side sleeping: shoulder down, neck level

Side sleeping: shoulder down, neck level

Your bottom shoulder slides into the arched front cutout while the raised wing supports your head at shoulder height. Your top hand rests in the sloped channel instead of pulling your upper back forward.

Back sleeping: head cradled, chin neutral

Back sleeping: head cradled, chin neutral

Roll onto your back and your head settles into the lower central cradle while the neck roll supports the natural curve of your neck, so your chin doesn't drop toward your chest.

Slow-rebound foam that keeps its shape

Slow-rebound foam that keeps its shape

The 55D core shapes to you over 3 to 5 seconds and then holds. In our 8-hour test under an 11 lb weight, the neck roll lost less than 1.8 mm of height.

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Cosari OrthoWing

Butterfly-contoured 55D memory-foam cervical pillow for side, back and combination sleepers

Backed by our 30-Day Money-Back Trial & Full 2-Year Cosari Warranty.

$109.98 $279.96 $54.99 / pillow Free Tracked Shipping (5–7 Days) Included

In Stock: Delivers in 5–7 Business Days. Free insured US delivery with tracking.

30-Day Money-Back Guarantee plus a full 2-Year Warranty.

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Description

Why ordinary pillows fail side sleepers: Down and polyfill compress under the weight of your head, often within the first hour. Your neck bends toward the mattress, and you end up folding the pillow or wedging your arm underneath it. Rectangular foam blocks don't sag, but they push your bottom shoulder upward because they leave no room for it.

What makes the OrthoWing different: It's one molded 55D memory-foam core with separate zones for side and back sleeping, an arched shoulder cutout, sloped arm channels and two neck-roll heights. The cover pairs a soft quilted knit top with breathable 3D honeycomb mesh sides and slate-grey piping.

Setting it up: Unroll it from the vacuum pack and leave it flat for 24 hours. Then choose the tall or low roll based on your shoulder width and mattress. Give your neck 3 to 5 nights to adjust if you're coming from a flat pillow.

5–7 Day Shipping & 30-Day Returns

Free 5–7 Day US Shipping: Every order ships free with full tracking and delivers in 5 to 7 business days.

30-Day Trial: Try it at home for 30 days risk-free. Need help? Email us anytime at support@buycosari.com.

2-Year Warranty: If anything goes wrong within 2 years, we replace it free of charge or refund your order in full.

Why Choose the Cosari OrthoWing?

Cosari OrthoWing Detail

55D Slow-Rebound Core

High-density viscoelastic foam that shapes to your head and neck in 3 to 5 seconds and stays at the same height through the night.

Zip-Off Washable Cover

A hidden underside zipper lets you remove the cover in seconds for a cold machine wash, then slide it back over the wings without a fight.

CertiPUR-US Certified, 30 Days to Decide

The foam is made without formaldehyde, heavy metals or ozone depleters, and you get a full month to sleep on it before you decide.

Cosari OrthoWing vs. Ordinary Alternatives

Cosari OrthoWingStandard Competitors

FeatureCosari OrthoWingStandard Competitors
Holds neck height until morningUnder 1.8 mm loss after 8 hours with an 11 lb weightFill-based pillows can sink 38 mm or more
Room for the bottom shoulder6.5 cm arched cutoutStraight edge pushes the shoulder up
Fits different body sizesReversible 12.5 cm / 9.5 cm rollsOne fixed height, or fill you have to adjust
Side-to-back transitionsRaised wings plus a lower center cradleSame height everywhere
Heat buildup3D honeycomb mesh side gussetsSolid foam or dense fabric on all sides

What's Included

In the Box
  • 1 × Cosari OrthoWing 55D cervical memory-foam pillow core
  • 1 × Removable zippered quilted knit & 3D honeycomb mesh cover (pre-installed)
  • 1 × Halden Sleep & Care guide card
Technical Specifications
  • {'label': 'Dimensions', 'value': '62 cm × 38 cm'}
  • {'label': 'Neck roll heights', 'value': '12.5 cm (high side) / 9.5 cm (low side), reversible'}
  • {'label': 'Core', 'value': '55 kg/m³ (55D) CertiPUR-US certified slow-rebound memory foam'}
  • {'label': 'Rebound time', 'value': '3 to 5 seconds'}
  • {'label': 'Shoulder cutout', 'value': '6.5 cm arched front relief'}
  • {'label': 'Cover', 'value': 'White quilted breathable knit top, slate-grey 3D honeycomb mesh side gussets, slate-grey contour piping, hidden underside zipper'}
  • {'label': 'Care', 'value': 'Cover machine-washable cold; foam core spot-clean only'}
  • {'label': 'Shipping & trial', 'value': 'Ships vacuum-packed; 30-Day Money-Back Guarantee; 2-Year anti-flattening warranty'}
Care & Safety
  • Unzip the cover from the underside and wash it on a cold, gentle cycle. Air-dry flat or tumble on low, then slide it back over the wings once fully dry.
  • Never wash, soak or machine-dry the foam core. Spot-clean it with a damp cloth and mild soap, and air it out by a window now and then to keep it fresh.
  • Backed by our 30-Day Money-Back Guarantee & 2-Year Warranty
  • Customer Support: support@buycosari.com
In the Box Cosari OrthoWing

Ready in three steps

Swipe left for steps 2 and 3

  1. Unroll and let it expand
    1

    Unroll and let it expand

    Take the pillow out of its vacuum pack, set it on a flat surface and give the foam about 24 hours to reach its full shape.

  2. Pick your height
    2

    Pick your height

    Turn it 180 degrees to choose the 12.5 cm roll for broader shoulders or firm mattresses, or the 9.5 cm roll for smaller frames or soft mattresses.

  3. Tuck your shoulder and settle in
    3

    Tuck your shoulder and settle in

    Lie on your side, slide your bottom shoulder into the front cutout and rest your top hand on the sloped wing. Your neck should feel level, not propped up.

Verified Customer Reviews

What 200+ Verified Buyers Say About the Cosari OrthoWing

Excellent Trustpilot
4.8
Based on 247 verified reviews
5 Stars
212
4 Stars
25
3 Stars
7
2 Stars
2
1 Star
1
97% of buyers recommend the Cosari OrthoWing
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✓ Verified Purchase
Marcus V.2 days ago

No more dead arm at 3:30 AM

I used to wake up every morning around 3:30 AM with my bottom arm completely dead and tingling because I was jamming my wrist under a flat pillow to prop my head up. Three nights on this butterfly contour and the arm numbness is 100% gone. The curved shoulder cutout along the front edge lets my shoulder sit naturally on the mattress instead of getting shoved toward my ear.

Verified Purchase · Denver, CO · Cosari OrthoWing

Customer photo
✓ Verified Purchase
Elena R.4 days ago

Holds its exact height until 6 AM

Spent $96 on a famous shredded-foam pillow last year and hated how the stuffing split down the middle by 2 AM. Because this is a single molded 55D slow-rebound core, it holds the exact same height at 6 AM as it did at 10 PM. Pressed my hand into the center cradle right on the dining table after letting it expand and you can feel how dense and supportive the foam is without feeling like a brick.

Verified Purchase · Naperville, IL · Cosari OrthoWing

✓ Verified Purchase
David K.1 week ago

Physical therapist approved for my C5-C6

My physical therapist told me my C5-C6 disc irritation was happening while I slept because my head was dropping four inches toward the mattress. This is the first cervical pillow that actually fills the gap between my jaw and shoulder while keeping my spine level. Took two nights to get used to real cervical support, and by morning four my base-of-the-skull headache vanished.

Verified Purchase · Raleigh, NC · Cosari OrthoWing

✓ Verified Purchase
Hannah T.1 week ago

Seamless switch from back to side

I'm a hybrid sleeper—start on my back reading, roll onto my left side to fall asleep, and flip back and forth by morning. The center depression cradles the back of my head without pushing my chin forward, and when I roll onto my side, the raised side wings are the exact height of my shoulder.

Verified Purchase · Portland, OR · Cosari OrthoWing

✓ Verified Purchase
Greg M.2 weeks ago

Actually stays cool around the ears and cheek

Usually solid memory foam makes my cheek and ear burn up by midnight, especially here in Arizona. The slate-grey 3D honeycomb mesh gusset around the sides actually lets warm air escape whenever you shift positions, and the white quilted top stays smooth and cool.

Verified Purchase · Scottsdale, AZ · Cosari OrthoWing

✓ Verified Purchase
Claire S.2 weeks ago

Bought two—husband uses tall side, I use low side

Love that you can rotate it 180 degrees depending on whether you want the higher 12.5 cm contour or the slightly lower 10 cm side. My husband uses the taller side for his broad shoulders and I use the lower contour. We grabbed the 50% off deal for both.

Verified Purchase · Minneapolis, MN · Cosari OrthoWing

✓ Verified Purchase
Trevor B.3 weeks ago

Give yourself 2-3 nights to adjust

If you've slept on mushy down pillows for ten years, the first night feels noticeably structured under your neck roll. Stick with it—by night three my upper trap stiffness was completely gone and now flat hotel pillows feel terrible.

Verified Purchase · Cincinnati, OH · Cosari OrthoWing

✓ Verified Purchase
Patricia L.3 weeks ago

Zero ear pressure for side sleeping

I have sensitive cartilage in my right ear and firm contour pillows always crushed my ear after an hour. The way the center cradle transitions into the side wings gives my ear plenty of relief while my jaw and neck stay supported.

Verified Purchase · Sarasota, FL · Cosari OrthoWing

✓ Verified Purchase
Brian W.1 month ago

Top arm groove keeps my upper back aligned

What surprised me most is the sloped groove along the side wings—when I sleep on my side, my top hand naturally rests right in that contoured channel instead of dropping across my chest and pulling my upper back out of alignment.

Verified Purchase · Boise, ID · Cosari OrthoWing

✓ Verified Purchase
Megan D.1 month ago

Cover unzips and washes easily

The removable cover unzips smoothly around the back, washes clean on cold gentle cycle, and slips right back over the butterfly wings without wrestling the foam core. Zero chemical odor out of the package too.

Verified Purchase · Hartford, CT · Cosari OrthoWing

Wake up without the dead arm. Try it for 30 nights.

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Frequently Asked Questions

Which height should I use, the 12.5 cm or the 9.5 cm side?

Start with the 12.5 cm side if you have broad shoulders or a firm mattress, and the 9.5 cm side if you're smaller-framed or sleep on a soft mattress. If your ear feels pushed up toward the ceiling, switch to the lower side.

What if I roll onto my back during the night?

The center of the pillow sits lower than the side wings, so your head settles into the cradle while the neck roll supports the curve of your neck. Our hybrid-sleeping tester rarely woke up to readjust it.

Does it sleep hot like old memory foam?

It ran cooler than the solid-foam contour pillows we tested. The 3D honeycomb mesh on the sides lets warm air escape, and the knit top breathes better than a smooth foam skin.

How do I clean it?

Unzip the cover from the underside, wash it on a cold gentle cycle and air-dry it. Don't wash or tumble-dry the foam core. Spot-clean it with a damp cloth if needed.

Will it smell when I open it?

The foam is CertiPUR-US certified. You may notice a faint new-foam scent right out of the vacuum pack, which fades as the pillow airs out over its 24-hour expansion.

What if it doesn't work for me?

You're covered by a 30-Day Money-Back Guarantee. Sleep on it for a few weeks, and if your mornings don't improve, send it back for a full refund.

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