Oubonun 18 x 18 Throw Pillow Inserts, Set of 4, White Polyester

Some cushion projects call for a single insert, updating several spots at once calls for a matching set. Oubonun’s four white, 18 x 18-inch throw pillow inserts bring soft polyester fill to sofa, bed, or chair cushions, helping create a comfortable, coordinated look around the room.

Their relaxed feel suits everyday lounging as well as decorative use, while the breathable fill and quiet construction keep the cushions comfortable for reading, watching TV, or winding down.

Everyday use

Use these square inserts to give throw pillow covers a soft, inviting shape on a couch, bed, or favorite chair. The resilient 7D polyester fiber filling is designed for a comfortable balance of softness, making the cushions suitable for casual support while you relax or read. A soft, skin-friendly cover and breathable filling add to their comfort through everyday use, and the quiet construction avoids crinkling sounds as you settle in.

The set of four is useful when you want to refresh multiple cushions in one decorating project. Rather than sourcing inserts one at a time, you can use the same size and color across several spaces for a more coordinated arrangement. White also works as a simple inner layer beneath decorative pillow covers, letting the cover’s color and pattern set the visible style.

The inserts arrive vacuum packed. After opening, gently pat, knead, and fluff them to loosen the fibers, then allow 24–48 hours for them to regain their shape naturally. For quicker fluffing, the care instructions recommend tumble drying on low heat. They are machine washable and tumble dryer safe, with a low-heat tumble dry recommended after washing to refresh the fibers.

Pros

The 18 x 18-inch square size gives you a clear starting point when choosing throw pillow covers and planning a cushion arrangement. Four inserts make it practical to style a sofa, bed, or several chairs with a consistent look, while the soft polyester filling supports a relaxed feel for everyday use.

Breathable filling, a soft cover, and quiet construction suit spaces where cushions are used throughout the day, not just arranged for display. Machine-washable, dryer-safe care also makes it easier to keep the inserts ready for regular use. The set is a fitting choice when you want a group of matching inner cushions instead of assembling a collection one insert at a time.

Quick overview

• Type: Throw pillow inserts
• Size: 18 x 18 inches
• Set: 4 inserts
• Color: White
• Fill material: 7D polyester fiber
• Care: Machine washable and tumble dryer safe, low heat is recommended for fluffing and refreshing

Final verdict

For a sofa, bedroom, or living room that needs several soft square cushions, this four-piece set combines a consistent 18 x 18-inch size with breathable polyester filling and straightforward machine-washable care. It makes sense if you’re refreshing multiple throw pillows for lounging and decor, and want a soft, quiet insert that works across everyday seating and bedroom spaces.