Foamily 18x18 Throw Pillow Inserts Set of 4 — White, 100% Cotton Cover & Hypoallergenic Fill

Foamily 18x18 Throw Pillow Inserts are a set of four plump, washable pillow cores with 100% cotton covers and hypoallergenic down-alternative fill designed to give 18x18 cushion covers a full, long-lasting shape.

These inserts are made to restore and elevate the look of your throw pillows across living rooms, bedrooms, nurseries, and seating areas. Each insert is constructed with a natural cotton shell and a springy, machine-washable down-alternative fill that keeps pillows looking rounded and well-styled while offering an easy-care routine. The set includes four matching inserts so you can refresh multiple cushions at once without hunting for coordinating fills.

How do these inserts keep my pillow covers looking full and crisp?

The inserts are intentionally firm with a rounded profile to resist flattening and maintain sharp corners in 18x18 covers. The cotton shell adds structure compared with thin polyester shells, which helps the insert hold its shape day after day. Regular fluffing and correct washing restore loft quickly if the fill compresses.

• Firm, rounded fill preserves a plump silhouette
• 100% cotton cover provides shape and durability
• Fill resists clumping and compressing with normal use

What size pillow covers should I pair with these inserts?

These are true 18x18 inserts — they’re made to fully fill 18x18 covers. For the sharpest corners and fullest appearance, choose covers that match the insert size or are up to one inch smaller; a slightly snug cover creates a tailored, tailored look.

• Best with 18x18 covers for intended fit
• Up to 1 inch smaller cover gives a taut, decorative finish
• Avoid much larger covers to prevent sagging corners

Are these pillow inserts easy to clean and safe for sensitive users?

The inserts use a hypoallergenic down-alternative fill that is fully machine washable for simple maintenance. Wash cold and tumble on low, then reshape and fluff when dry to bring back loft. The down-alternative option reduces exposure to common allergens associated with natural down.

• Hypoallergenic down-alternative fill suitable for allergy-prone households
• Machine washable — cold wash, low tumble dry
• Fluff after washing to restore original fullness

What makes the Foamily set of four a better value for decorating?

Buying a coordinated set of four inserts lets you refresh an entire sofa or bedroom grouping without mismatched fills. The consistent look and matching loft across all four inserts create a uniform, designer-ready presentation. Foamily support stands behind the set to help with sizing or care questions.

• Four identical inserts for a cohesive look across multiple cushions
• Cost-effective compared with buying individual inserts
• Customer support available for sizing and care guidance

Who is this for: These inserts are ideal for anyone who wants to upgrade the appearance of 18x18 decorative pillow covers — homeowners staging living spaces, renters refreshing sofas, parents creating comfortable nurseries, and decorators who need consistent, washable, hypoallergenic fills. If you want crisp corners, reliable loft, and easy care in a set that covers a whole couch or room, this Foamily four-pack is built for that use.