The best 40 x 40 pillow insert depends on whether you mean 40 inches or 40 centimeters: 40 cm is about 16 inches, while 40 inches is a much larger floor-cushion size. The WINGLAM insert is listed as 40 inches square; the other options are approximately 16 inches square. EDOW offers a four-pack or a single insert, the 40 x 40 cm filler emphasizes soft Terylene cotton, and OKBA is a two-pack with cotton covers.
| Product | Listed size | Best suited for |
|---|---|---|
| WINGLAM | 40 x 40 inches | Large square pillow covers |
| EDOW Set of 4 | 16 x 16 inches | Several small covers |
| EDOW Single | 16 x 16 inches | One small cover |
| 40 x 40 cm Filler | 40 x 40 cm | Buyers seeking soft, piped edging |
| OKBA Set of 2 | 16 x 16 inches | Two inserts with cotton covers |
WINGLAM 40-Inch Square Insert
This down-alternative insert is listed as 40 by 40 inches and comes as a one-pack. It is the closest match for shoppers searching specifically for a 40-inch square pillow, rather than the more common 40-centimeter size.
Best for: Filling a large decorative cover or cushion when the cover dimensions are also close to 40 inches square. Why it was selected: Its listed dimensions directly match the inch interpretation of the search phrase. Limitation: It is substantially larger than a 40 cm, or 16-inch, insert, so check the cover measurement before ordering.
EDOW Four-Pack 16-Inch Inserts
This set includes four 16 x 16-inch inserts, also described as 40 x 40 cm. Each weighs 0.77 pounds and uses microfiber polyester filling with a polyester cover. The product listing describes medium support and spring-back ability.
Best for: Buyers furnishing multiple 40 cm square pillow covers at once. Why it was selected: Its dimensions make it a direct match for the metric version of a 40 x 40 pillow search, and the four-pack can cover several cushions. The listing says the inserts are gently machine washable and suggests drying or airing them to help restore their shape. Limitation: These are 16-inch inserts, not 40-inch cushions.
EDOW Single 16-Inch Insert
This EDOW insert shares the listed size and materials of the brand’s four-pack option: 16 x 16 inches, 0.77 pounds, a polyester cover, and microfiber polyester filling. The product details describe medium support and spring-back filling.
Best for: Someone who needs one insert for a 16-inch cover or wants to match an existing cushion without buying a multi-pack. Why it was selected: It offers the same stated dimensions and care guidance as the four-pack in a single-insert listing. Limitation: The listing does not describe a 40-inch size; confirm that 16 inches is appropriate for the cover.
40 x 40 cm Soft Pillow Filler
This square pillow filler is listed as 40 x 40 cm. Its Terylene cotton material is described as soft, breathable, and flexible, with filling intended to provide both softness and support. Poplin piping along the edges is designed to help keep the seams neat and durable.
Best for: Shoppers looking for a 40 cm insert with piped edges and a soft feel. Why it was selected: The metric dimensions directly match a common meaning of “40 x 40 pillow,” and the edge construction is a clearly stated feature. Limitation: The provided details do not specify a machine-washable care method.
OKBA Two-Pack With Cotton Covers
OKBA’s set contains two 16 x 16-inch inserts with 100% cotton covers and microfiber filling. The listing describes medium support, breathability, and use on sofas, beds, and other indoor settings. It also says the inserts are intended for 14 x 14-inch cases and 15 x 15-inch covers.
Best for: Buyers who want two smaller inserts with cotton covers and medium support. Why it was selected: The set size and 16-inch dimensions suit shoppers decorating with 40 cm-scale cushions. Limitation: The stated cover guidance is smaller than 16 inches, so check the intended fit if using a different cover size.
Buying Guide: How to Choose a 40 x 40 Pillow
Does 40 x 40 mean inches or centimeters?
Check the unit before choosing an insert. A 40 x 40 cm pillow is approximately 16 x 16 inches. A 40 x 40-inch pillow is a much larger cushion. In this selection, WINGLAM is listed in inches; the other inserts are around 16 inches or 40 cm.
How should the insert fit the cover?
Compare the insert’s stated size with the pillow cover’s measurements and the fit you want. A cover-maker may recommend an insert slightly larger than the cover for a fuller appearance, but the product details here do not specify a universal sizing rule. Follow the cover’s own guidance where available.
Which filling and cover materials should you consider?
EDOW and OKBA specify microfiber polyester filling. EDOW lists polyester covers, while OKBA specifies cotton covers. The 40 x 40 cm filler describes Terylene cotton and piped edges. Compare stated material and support details rather than assuming all inserts feel or care for the same way.
Do you need one insert or several?
Choose the EDOW single insert for one cushion, its four-pack for multiple covers, or the OKBA two-pack for a pair. Confirm dimensions and quantities in the product details before purchase. For care, only the EDOW listings here state gentle machine washing.
Frequently Asked Questions
Is a 40 x 40 pillow the same as a 16 x 16 pillow?
It is approximately the same when the measurement is in centimeters: 40 cm is about 15.7 inches. A 40 x 40-inch pillow is much larger.
Which option is actually 40 inches square?
The WINGLAM product is listed as a 40 x 40-inch insert. The other listed options are approximately 16 inches square.
Which insert is sold as a single?
The EDOW single listing is one 16 x 16-inch insert. WINGLAM is also listed as a one-pack, but at 40 inches square.
Which options come in multipacks?
The EDOW set contains four 16-inch inserts, and the OKBA set contains two. Check the individual product details for current package information.
Which product lists machine washing?
The EDOW listings state that the inserts can be gently machine washed and recommend drying or airing them to help restore their fluffy shape.