Main Features
Based on our team’s research, the Sealy Adjustable Pillow stands out for these top features:
- Removable fill to adjust pillow height
- Proprietary memory foam blend
- Airy, stretchy liner to custom shape the pillow
- 100% cotton cover, machine washable
- 5-year warranty
About Cocoon
Cocoon by Sealy, also known as Cocoon, has over 7,000 5-star reviews for its lineup of mattresses, bases, and bedding, per its website. That shows the brand’s popularity, with many positive buyer experiences helping you feel more confident in its consistent product quality.

How the Sealy Adjustable Pillow is Made
This pillow from Cocoon by Sealy offers custom comfort with three layers and high-quality materials.
Premium Sealy Memory Foam Fill
Memory foam is a material popular for pillows as it conforms to the shape of the head and neck, supporting proper alignment and encouraging pressure relief. Cocoon’s Sealy Adjustable Pillow features a proprietary memory foam blend called Sealy Blend Foam.
This exclusive material offers more adaptive support than traditional memory foam. A major benefit is getting the level of firmness you want without the pillow feeling overly rigid.
The foam is removable via a convenient zipper in the cover, if you want to do so. Remove fill to reduce pillow thickness and add it back to increase the pillow’s loft (height), based on what you find comfortable.
Certified Foam
The foam is Certi-PUR-US® certified, as confirmed by Sealy’s customer support team via their site’s live chat feature. That means the foam is free of ozone depleters, formaldehyde, phthalates, and heavy metals, such as mercury and lead.
The certification indicates quality and safety by minimizing exposure to potentially dangerous chemicals for a healthier sleep environment. The respected label also often matters to those wanting better indoor air quality as the foam is low in VOCs (volatile organic compounds), which means fewer chemical odors.
Lightweight Liner
An airy, stretchy liner holds the foam fill together, preventing too much shifting inside the pillow. That helps provide even support across its surface. It is breathable too.
As the liner is flexible, you can reshape and fluff the pillow after removing or adding the fill. That makes it easy to get the loft and feel you want without any fill falling out or bunching up.
Removable, Washable Cover
The outer cover unzips at the side to access the foam fill, which you can take out or add back to adjust the pillow’s height. The cover is 100% cotton, as we confirmed by live chat on Cocoon’s site. Cotton is soft and gentle on the skin for greater comfort. The material is also naturally breathable to help reduce night sweats.
The zipper also makes removing the cover to machine wash it easily. Using mild detergent in cold water and hanging dry is the best care for cleaning the cover, per the Cocoon by Sealy site.
What about Sizes? Cocoon Sealy Adjustable Pillow Review
This pillow is available in one standard size:
The pillow’s dimensions and adjustable fill make it suitable for side, back, stomach, and combination sleepers. While it has one size, it adapts to every sleep style as its shape and loft are customizable to what the individual prefers.
Cocoon Sealy Adjustable Pillow Review: Pros and Any Drawbacks
Knowing more about a certain pillow helps you decide if it offers what you want and need. With that in mind, let’s look at the benefits and potential limitations of the Sealy Adjustable Pillow.
Adjusts to How You Sleep
With its premium memory foam that you can add or remove, the Sealy Adjustable Pillow is customizable by loft and firmness. That ensures proper neck alignment in different sleep positions. The responsive nature of Cocoon by Sealy’s exclusive foam adapts to your unique shape each night. The stretchy liner adds to the pillow’s adaptability as you can plump, scrunch, or shape it to your liking, whether you are sleeping on your side, stomach, or back. Those who regularly toss and turn at night can easily adjust the pillow when changing positions.
More Comfort and Support
This pillow’s customizable loft means you can alter the height and feel for greater comfort and support. For example, many side sleepers may keep all the fill the pillow comes with for maximum elevation to get proper neck and shoulder alignment. Certain back sleepers may remove some fill for a medium loft for balanced support, while some stomach sleepers take out even more fill for a lower loft to reduce the risk of neck strain. Several buyers online positively describe the pillow’s custom support.
Plus, being able to fluff, shape, scrunch, and redistribute the Sealy Blend Foam allows you to get the feel you prefer, whether it is soft, firm, or somewhere in between the two. You’re also able to adjust the fill whenever you like, so even if you move at night, the pillow can remain comfy and supportive.
Greater comfort also comes from the cotton cover and the proprietary foam fill. The 100% cotton material feels soft against the skin, which is why some people with sensitive skin look for this type of cover. The special foam blend is moldable, feeling less stiff or restrictive. As the Sealy Adjustable Pillow adapts when you move, you’re less likely to wake up from discomfort.
Adaptive Pressure Relief
With Cocoon’s exclusive blend of memory foam, as well as the customizable height and stretchy inner liner, the adjustable pillow tailors to your shape. The Sealy Adjustable Pillow adjusts to reduce pressure points on your head, neck, and shoulders. The special foam contours these sensitive areas, evenly distributing weight for more comfort.
That may help the body relax and bring deeper sleep. It also helps prevent stiffness and soreness if pressure points are not properly supported throughout the night.
Does the Cocoon Sealy Adjustable Pillow sound like a good fit for you? See what else buyers have to say.
See Buyer Reviews
Responsive Feel
Responsiveness refers to how quickly the foam responds when changing positions. The Sealy Blend Foam is responsive, bouncing back quickly rather than staying stiff or compressed. That encourages the adaptive pressure relief described above and proper spinal alignment when changing sleep positions.
About Pillow Size
Having one size for a pillow makes choosing it easy. But those who like larger pillows may find the size of Cocoon’s Sealy Adjustable Pillow is not ideal. For many people, though, the benefit of being able to adjust the foam fill for comfort in several sleep positions will be more important than size.
Durability
Memory foam is known for being durable, especially in a premium form like the Sealy Blend Foam. That helps the fill last longer. Also, the cover for the Sealy Adjustable Pillow is made of high-quality cotton, a material that withstands frequent washing well. The Certi-PUR® certification helps extend the pillow’s lifespan, too, as the foam is free of certain harsh chemicals that could weaken it over time.
Cool Sleep
A breathable liner, like in the Cocoon Sealy Adjustable Pillow, helps dissipate heat from the head and neck to prevent the pillow from becoming overly warm at night. That can make for a more comfortable sleep. As well, the cover is cotton, a naturally breathable material. Air passes through the cover to help keep the pillow cool and prevent overheating that might wake you up. You can also adjust the loft to create more space for airflow around your head.
Hypoallergenic
Both the cover and proprietary foam blend are hypoallergenic, per Cocoon by Seal’s customer support team explained to use via the site’s live chat. That reduces dust mites, mold, and bacteria, common allergens that may trigger allergies. If you have a severe allergy or concern, see your doctor before using the pillow to ensure it is right for you.

More to Know: Value, Hygiene, and Warranty
On Value
Being hypoallergenic and using premium materials, including a proprietary foam blend, increases the pillow price slightly. However, it is still reasonable for an adjustable pillow, in our opinion. Plus, there are online-only promotions occasionally for savings, and the pillow ships free across the contiguous US. A small fee applies to Hawaii and Alaska residents.
For certain people, a customizable sleep experience offers greater value, making the Sealy Adjustable Pillow well worth it. Its high-quality, durable construction also makes it more likely to last longer, reducing the need for frequent replacements, making it more cost-effective over time.
Warranty
While there is no return or exchange of pillows as they are personal items, Cocoon by Sealy does include a long 5-year warranty with the Sealy Adjustable Pillow. That safeguards against manufacturing defects as defined in the warranty policy on Cocoon by Sealy’s site. Going beyond industry standard for length shows brand confidence in its product and often indicates superior quality.
Easily Part of a Hygienic Bedroom
Maintaining a clean sleeping environment is simpler with the Cocoon Sealy Adjustable Pillow. The inner liner protects the foam from dirt and moisture, helping the fill stay cleaner longer. The hypoallergenic cover and foam support a cleaner sleep surface, too, by resisting dust mites, mold, and bacteria. Still, regularly washing the cover is necessary, so it is not totally maintenance-free.
Being able to regularly machine-wash the cover, according to the label’s directions, makes keeping the surface clean and fresh easy. That’s important for hygiene as your skin and hair come into contact with the cover night after night. The ease of removing the cover for washing is noted by some buyers online.
Conclusion: Cocoon Sealy Adjustable Pillow Review
Choosing the right pillow can improve comfort and support for better sleep. The Sealy Adjustable Pillow by Cocoon stands out for its customizable design, premium memory foam blend, breathable cotton cover, and hypoallergenic materials.
While the pillow comes in only one size, its customizability is likely to be more important to many people. The adjustable filling allows you to customize the height, and the stretchy liner makes it easy to shape and fluff the pillow, all to get more support and comfort in your favorite sleep position.
The durable construction, CertiPUR-US® foam certification, and 5-year warranty add exceptional value. For those looking for a responsive pillow with adaptable pressure relief as part of a hygienic sleep environment, the Sealy Adjustable Pillow from popular Cocoon is one to seriously consider.