What Size Insert for a 12x20 Pillow Cover

Discover the ideal insert size for a 12×20 pillow cover! Uncover tips, tricks, and expert advice to maximize comfort and aesthetics. Click to get enlightened!

Pillow inserts are essential components that significantly enhance the comfort and aesthetic of your living spaces in interior design. These inserts are the core of your cushions and control your pillows’ size, stiffness, and general look.

What are Pillow Inserts?

Pillow inserts, or pillow forms, are essentially the stuffing or filling used inside a pillow cover. The purpose of these inserts is twofold. First, they provide the structure and volume needed to keep the pillow’s shape intact.

Second, depending on the type of fill material used, they offer the desired level of comfort and support.

Pillow inserts come in various shapes, sizes, and fill materials. Common fill materials include down feathers, synthetic down, polyester fiber, memory foam, and organic materials like buckwheat hulls and kapok fiber. The choice of fill depends on individual preferences, sensitivities, and the intended use of the pillow.


Why the Right Pillow Insert Size Matters

Choosing the right pillow insert size is critical for a couple of reasons. Primarily, it ensures the pillow offers appropriate support and comfort. A little insert may need more support, leading to discomfort or poor posture, while an oversized one may need to be firmer or look overstuffed.

Secondly, the right pillow insert size is critical to achieving the desired aesthetic appeal. When a pillow cover is filled appropriately, it looks plump and inviting, enhancing the overall appeal of your sofa, bed, or chair. The general rule is to choose an insert 1-2 inches larger than your pillow cover to achieve a nicely filled, professional look.


Understanding Pillow Cover Sizes

Understanding Pillow Cover Sizes

Navigating the realm of pillow cover sizes can initially seem complex, but with some understanding, you can select the perfect size to suit your needs and décor style.

Standard Pillow Cover Dimensions

The standard pillow cover dimensions are often categorized by the type of pillow they’re intended for.

I’ll give you a quick rundown of some typical sizes here:

A square pillow:

Most frequently, tiles are 16×16, 18×18, and 20×20 inches. Because of their adaptability, these can be used on mattresses, chairs, and sofas.

Lumbar Pillows:

These rectangular pillows offer additional back support and commonly come in sizes 12×18 or 12×20 inches.

Euro Pillows: 

These large square pillows are typically used for decorative purposes on beds. Standard sizes are 26×26 or 28×28 inches.

Choosing the correct pillow cover size balances functionality, comfort, and style. While more giant pillows offer comfort, smaller ones can be perfect accent pieces.


Special Mention: The 12×20 Pillow Cover

Among all the sizes, the 12×20 pillow cover deserves special mention. This lumbar pillow cover is an excellent option for individuals who want both design and usability. It complements your couch or office chair because its elongated rectangular design offers good lower back support. Furthermore, its contemporary design lends a sense of refinement to any environment.

From a design perspective, the 12×20 pillow cover offers a refreshing break from the traditional square pillows, bringing variety and contrast to your pillow arrangement. Whether paired with more giant square pillows on a bed or used solo on an accent chair, it will surely enhance your space’s aesthetic appeal.


Choosing the Ideal Insert for a 12×20 Pillow Cover

An ideally suited pillow insert is the perfect complement to a tastefully chosen 12×20 pillow cover. The journey to a perfect balance between aesthetics and comfort involves carefully considering various elements, primarily the right insert size.

Factors to Consider

Several factors need your attention when selecting the ideal insert for a 12×20 pillow cover. These include the fill material, the insert size, and the intended use of the pillow.

The fill material could range from down feathers, synthetic down, to polyester fiber, each offering different levels of softness and firmness. Depending on whether the pillow is for decorative or practical use, you may opt for different fill materials.

But the core determinant of a well-styled, comfortable pillow is undeniably the insert size, which we will discuss next.

The Perfect Fit: Insert size for 12×20 Pillow Cover

Insert size for 12x20 Pillow Cover

Regarding the insert size for a 12×20 pillow cover, a slightly larger pillow insert is the preferred choice. An insert 1-2 inches larger than the pillow cover generally provides the ideal volume and loft, leading to a well-filled, plush look.

Therefore, for a 12×20 pillow cover, an insert size of 13×21 or 14×22 inches would provide the best results. This slight increase allows the cover’s corners to be filled, preventing any sagging or flattening over time.

Enhancing Comfort and Aesthetics with Correct Pillow Insert Size

The right pillow insert size not only impacts the visual appeal of your pillows but also significantly affects the comfort they provide.


Benefits of the Correct Insert Size for Comfort

A well-sized insert dramatically enhances the level of comfort a pillow provides. An oversized insert may lead to excess firmness, while an undersized one may need more support.

When the insert size is just right—slightly larger than the cover—the pillow retains its shape better, offering consistent support, whether for back support on a chair or a cozy snuggle on a couch. This balance is crucial in ensuring long-term comfort and usability.

Enhancing Room Aesthetics with the Right Size Insert

The correct pillow insert size is also critical in enhancing room aesthetics. An appropriately filled pillow cover adds volume, structure, and charm to the overall look of your space.

For a 12×20 pillow cover, using a slightly larger insert makes the pillow look full and inviting without any empty corners.

Moreover, the well-stuffed pillow is a fantastic focal point, drawing attention and compliments.

The ideal insert for a 12×20 pillow cover is a careful balance of comfort and aesthetics. The right insert size plays a critical role in achieving this harmony. So when you next choose a pillow insert, remember to consider the fill material and the insert size about the pillow cover size for an inviting, comfortable pillow arrangement.

Common Mistakes in Selecting Pillow Insert Sizes

Many people make frequent errors while selecting the proper pillow insert size, affecting their comfort and overall sleeping experience. The size of your pillow insert is vital in giving you the support and relaxation you require, from overstuffing to understaffing. In this post, we’ll examine the effects of over- and under-stuffing on your pillows, offer advice on preventing size selection mistakes, review the relevance of selecting the appropriate pillow insert size for a specific cover size, and go over the importance of regular pillow maintenance.

Overstuffing and Understaffing: The Impact

Overstuffing and understaffing are two prevalent mistakes individuals make when selecting pillow insert sizes. These mistakes might significantly impact your ability to sleep comfortably and with quality. Examining each’s effects can help us understand the following:


Overstuffing a pillow insert refers to using a size too large for the cover.

It can prevent your head from properly sinking into the pillow, leading to a misalignment of the spine.

Uneven Distribution: When a pillow insert is larger than the cover, the stuffing tends to clump together in the middle, leaving the edges empty. This can create an uneven surface, resulting in an uncomfortable sleep experience.

Bulky Appearance: An overfilled pillow may not fit properly into its cover, causing it to appear bulky and misshapen. This can affect the aesthetics of your bedding arrangement.



Conversely, understaffing occurs when the pillow insert is smaller than the cover. This mistake can have its own set of drawbacks, such as:

Lack of Support: Underfilled pillow needs to provide adequate support for your head and neck. This can lead to poor spinal alignment, discomfort, and potential neck pain.

Flat and Lifeless: An underfilled pillow often lacks volume and can appear flat and lifeless. It fails to provide the necessary cushioning, adversely affecting your sleep quality.

Uneven Appearance: Just like overstuffing, understaffing can also cause an uneven appearance, as the pillow fails to fill out the cover appropriately.

Tips to Avoid Size Selection Errors

To ensure you select the appropriate pillow insert size for your covers, consider the following tips:

Measurements Matter: Take accurate measurements of your pillow covers before purchasing inserts. Note the dimensions and choose inserts that match those measurements precisely.

Consider Fill Power: Different pillow inserts have varying fill powers, determining their fluffiness and loftiness. Consider the desired level of firmness and support when selecting the appropriate fill power.

Seek Expert Advice: If you need more certainty about the right pillow insert size for your covers, seek guidance from bedding experts or consult online resources that provide size charts and recommendations.

Read Customer Reviews: Review customer reviews and experiences regarding specific pillow insert sizes before purchasing. This can offer valuable insights and help you make an informed decision.

Recap: Choosing the Right Pillow Insert Size for 12×20 cover

Selecting the right pillow insert size is crucial, especially when dealing with a specific cover size, such as 12×20. To recap, here are the key points to remember:

Accurate Measurements: To determine the appropriate pillow insert size, measure your cover.

Avoid Overstuffing: Using a more oversized insert than the cover size can lead to discomfort and an uneven appearance.

Prevent Understuffing: Ensure your pillow insert adequately fills the cover to provide optimal support and a pleasing aesthetic.

Encouraging Proper Pillow Care and Maintenance

Regular Fluffing: Fluff your pillows regularly to redistribute the filling and maintain their shape.

Proper Cleaning: Follow the manufacturer’s instructions for cleaning your pillows. Regularly washing or dry cleaning them can help eliminate dirt, dust mites, and allergens.

Pillow Protectors: Consider using pillow protectors to shield your pillows from stains, spills, and allergens. These protective covers are usually removable and washable.

Replacing When Needed: Over time, pillows lose their shape and support. If you notice sagging, lumpiness, or discomfort, it may be time to replace your pillow inserts.


The Comprehensive Guide to Pillow Insert Sizes

Are you contemplating which pillow insert size you should choose when buying new pillows? Your search ends here.

Understanding the Pillow Size Spectrum

Pillows come in many sizes and dimensions, making them versatile living space components. They are not just confined to bedrooms. Pillows are employed in living rooms, reading nooks, and outdoor spaces. Here’s a detailed look at the different sizes of pillow inserts available.

Standard Pillow Inserts (20 x 26 inches)

The standard-size pillow insert is the most common one. It’s a versatile choice that complements most bed sizes. It’s the go-to pillow for most households due to its adaptability and compatibility with various bed frames.

Queen Pillow Inserts (20 x 30 inches)

Queen-size pillow inserts are more extensive and provide additional support and comfort. They fit perfectly with queen-size beds, giving a complete and luxurious look.


King Pillow Inserts (20 x 36 inches)

King-size pillow inserts are designed to match king-size beds. They are larger and support those who frequently change positions during sleep.


Euro Pillow Inserts (26 x 26 inches)

Euro-size pillow inserts are large, square-shaped, and commonly used in the backdrop for other pillows on a bed or standalone couches and chairs. They’re perfect for reading in bed due to their more substantial support.

Lumbar Pillow Inserts (12 x 20 inches)

Lumbar pillow inserts are rectangular and explicitly designed to support the lower back. These pillows are ideal for office chairs, sofas, or anywhere you sit for extended periods.

Customizing Your Pillow Selection for Your Space

The trick to decorating with pillows is knowing which size best suits each situation. Here’s a breakdown of which pillow insert sizes are perfect for specific scenarios.



For a twin bed, one standard pillow insert is sufficient. Two standard or queen pillow inserts work best for a full or queen bed. For a king bed, opt for two king pillow inserts.

Living Rooms

A mix of different sizes can add depth to your sofa. Start with two 20×20 or 22×22 inch pillow inserts in the corners, then add two 18×18 inch inserts in the front and a lumbar insert in the center.

Outdoor Spaces

Outdoor furniture is more welcoming with pillows. Two 18×18 or 20×20-inch inserts are good starting points. Add a couple of lumbar pillows for extra comfort.

Tips to Choose the Right Pillow Insert Size

Go Big for a Luxurious Feel

Oversized pillows bring an element of luxury. A bigger pillow on a smaller bed or sofa can create a plush and inviting look.

Pair Different Sizes Together

Layering different pillow sizes can add depth and variety to your space. This approach is especially effective in living rooms, where an assortment of pillows can make your couch the focal point.

Maintain Balance

The overall look of your décor should be balanced. Don’t overcrowd your furniture with too many pillows; likewise, don’t make it sparse.



Choosing the right pillow insert size is vital for achieving optimal comfort and support while ensuring your pillows look visually pleasing. Avoid the pitfalls of overstuffing and understaffing, and instead, focus on accurate measurements and expert recommendations. Additionally, practicing proper pillow care and maintenance will help prolong the lifespan of your pillows, allowing you to enjoy restful and rejuvenating sleep night after night.

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