The best 40 x 40 pillow insert depends on whether you mean 40 centimeters or 40 inches: those sizes are very different. The EDOW inserts and the Type 2 cushion filler are listed as 40 x 40 cm, while the WINGLAM insert is 40 x 40 inches. For a multi-insert set, EDOW offers four 40 cm inserts; for one oversized square, WINGLAM is the listed 40-inch option.
| Product | Listed size | Best for |
|---|---|---|
| EDOW Set of 4 | 16 x 16 in / 40 x 40 cm | Several small covers |
| EDOW Single Insert | 16 x 16 in / 40 x 40 cm | One small cover |
| Type 2 Cushion Filler | 40 x 40 cm | Soft decorative filling |
| WINGLAM Square Insert | 40 x 40 in | One oversized cover |
| OKBA Set of 2 | 16 x 16 in | Cotton covers and medium support |
EDOW Set Of Four 16-Inch Inserts
This set contains four inserts listed as 16 x 16 inches, or 40 x 40 cm. Each weighs 0.77 pounds and uses upgraded microfiber polyester filling with a polyester cover. The maker describes the support as medium and notes that the filling has spring-back ability.
Best for: Buyers filling several 40 cm square covers at once. Choose this set if quantity and machine-washable care matter; the product information says it can be gently machine washed. Drying in a dryer or sunlight may help it regain a fluffy shape.
Limitation: These are small decorative inserts, not 40-inch cushions. Their listed support is medium, so they may not suit buyers seeking a very firm pillow.
EDOW Single 16-Inch Insert
This single EDOW insert is listed as 16 x 16 inches, equivalent to 40 x 40 cm. It has a polyester cover and upgraded microfiber polyester filling. The product details list a weight of 0.77 pounds, medium support, and gentle machine-washable care.
Best for: Someone replacing one insert or testing the listed size before buying a set. It shares the four-pack’s stated size and materials, but lets buyers purchase a single cushion filler.
Limitation: The product information describes medium support rather than a firm or extra-plush feel. Confirm that your cover is sized for a 16-inch insert before ordering.
Type 2 40 Cm Cushion Filler
This square throw pillow insert is described as 40 x 40 cm and filled with Terylene cotton. Its listing emphasizes a soft, breathable feel and flexible filling intended to provide both softness and support. Poplin piping around the edge is tightly sewn to help keep the seams neat.
Best for: Buyers looking for a 40 cm insert for a bed, couch, or sofa who prioritize softness and finished edge construction. It is a relevant option when the cover’s dimensions are in centimeters rather than inches.
Limitation: The provided product details do not specify machine-washable care or a precise firmness level. Check care instructions and desired feel before choosing it.
WINGLAM 40-Inch Square Insert
WINGLAM lists this white, down-alternative pillow form as 40 x 40 inches, with polyester fiber fill. The listing describes it as soft but resilient, intended to provide neck and back support while lounging or reading. It also says the insert is designed to fit a 38-inch cover.
Best for: Buyers who specifically need an oversized 40-inch square insert for a large cushion cover. Choose it over the 40 cm options only when your cover is close to the listed large size.
Limitation: A 40-inch insert is far larger than a 40 cm insert. The listing’s parenthetical centimeter conversion appears inconsistent, so verify the size with the seller and measure your cover before ordering.
OKBA Set Of Two 16-Inch Inserts
OKBA’s two-pack contains 16 x 16-inch inserts with advanced microfiber filling and a 100% cotton cover. The listing describes the support as medium and says the inserts are intended for 14- or 15-inch covers. It also describes a diagonal stripe pattern intended to support durability and shape retention.
Best for: Buyers who want two smaller inserts with cotton covers and medium support for sofas, beds, or other listed home settings. The suggested cover sizes are useful if you want a fuller look than a same-size cover may provide.
Limitation: These are 16-inch inserts, not 40-inch forms. The recommended cover sizing differs from the exact insert size, so compare your cover measurements with the listing before purchase.
Buying Guide: How To Choose A 40 X 40 Pillow Insert
Does 40 x 40 Mean Centimeters Or Inches?
Check the unit on the pillow cover label or product description before buying. A 40 x 40 cm insert is approximately 16 x 16 inches. A 40 x 40-inch insert is an oversized cushion, not a close substitute. The products in this comparison include both sizes, so do not rely on the numbers alone.
Should The Insert Match The Cover Size?
Start with the cover’s finished dimensions and the look you want. An insert close to the cover size may give a more filled appearance, while a smaller insert may look less full. OKBA specifically suggests its 16-inch inserts for 14- or 15-inch covers; other listings do not provide the same cover-size guidance.
Which Filling And Care Details Matter?
Compare the listed materials and support descriptions. The EDOW inserts use microfiber polyester filling and list medium support; the Type 2 filler uses Terylene cotton; WINGLAM describes polyester down-alternative fill. Only the EDOW listings here specify gentle machine washing. Follow each product’s care directions rather than assuming inserts have identical cleaning requirements.
When Is A Set Better Than One Insert?
A multi-pack can suit buyers filling several matching covers, while a single insert is more practical for replacing one cushion. The EDOW four-pack is listed as four 40 cm inserts, and the OKBA product is a two-pack of 16-inch inserts. Compare the count and dimensions, not just the product name.
Frequently Asked Questions
Is 40 x 40 cm the same as 16 x 16 inches?
They are approximately equivalent sizes. The EDOW listings describe their 16-inch inserts as 40 x 40 cm.
Is a 40 x 40-inch insert suitable for a 40 cm cover?
No. A 40-inch insert is much larger than a 40 cm cover. Confirm the unit before ordering.
Which option comes as a four-pack?
The EDOW set is listed as four 16 x 16-inch, or 40 x 40 cm, inserts.
Which listed insert has a cotton cover?
The OKBA two-pack is listed with a 100% cotton cover. Its inserts are 16 x 16 inches.
Are these inserts machine washable?
The EDOW listings specify gentle machine washing. The other product details provided do not confirm machine-washable care.