How To Fix Saggy Sofa Cushions

Sagging sofa cushions are a common problem that can detract from the comfort and aesthetics of a living space. Over time, regular use takes a toll on the internal structure of cushions, leading to flattening and loss of support. Fortunately, there are several methods for revitalizing saggy cushions, ranging from simple fluffing and rearranging to more involved repairs and replacements.

1. Fluffing and Rotating Cushions

One of the easiest ways to address minor sagging is through regular fluffing and rotation. Cushions, especially those filled with down or synthetic fibers, tend to compress with use. Fluffing helps redistribute the filling material, restoring some of the lost loft. Simply remove the cushions from the sofa and vigorously fluff them by hand, ensuring the filling is evenly distributed.

Rotating cushions regularly is also crucial. By switching the positions of the cushions, the wear and tear are distributed more evenly, preventing excessive compression in specific areas. This simple practice can significantly extend the lifespan of cushions and delay the onset of noticeable sagging.

For cushions with removable covers, consider taking the covers off and fluffing the inserts directly. This allows for more thorough fluffing and ensures that compacted filling in the corners and edges is addressed. Regularly airing out cushion inserts can also help maintain their loft and freshness.

2. Reinserting or Replacing Cushion Cores

Many sofa cushions utilize foam cores wrapped in a layer of batting or fiberfill. Over time, these cores can break down and lose their supportive structure. If fluffing and rotating don't provide sufficient improvement, checking the condition of the core is the next step. If the core is damaged or significantly compressed, it might need replacement.

Replacing the core involves removing the cushion cover and carefully examining the existing core. Measure the dimensions of the old core to ensure the new one fits correctly. Foam cores can be purchased from upholstery supply stores or online retailers. When selecting a new core, consider the density and firmness of the foam to match the original cushion's feel.

In some cases, the core itself might still be in good condition, but the surrounding batting or fiberfill might be compressed. In this situation, adding a layer of new batting around the core can restore the cushion’s plumpness. Wrap the core with the new batting and ensure it is evenly distributed before replacing the cover.

3. Adding Support Layers

For cushions that haven't reached the point of requiring core replacement, adding support layers can be a cost-effective solution. These layers can provide extra support and help lift the cushions, improving their overall shape and comfort.

A simple method is to add a layer of firm upholstery foam or a piece of plywood cut to the dimensions of the cushion base. Place this layer beneath the cushion insert to provide a stable foundation and prevent further sagging. This is particularly effective for seat cushions that have lost their shape due to the breakdown of the underlying support system.

Another option is to insert a layer of batting or fiberfill between the cushion core and the cover. This adds extra padding and helps restore the cushion’s loft without requiring core replacement. Ensure the added layer is evenly distributed to avoid creating lumps or uneven surfaces.

For cushions with zippered covers, accessing the interior and adding support layers is relatively straightforward. For cushions without zippers, it might be necessary to consult an upholstery professional for assistance.

4. Professional Upholstery Services

While many methods for fixing saggy cushions can be undertaken as DIY projects, sometimes professional intervention is the best course of action. If the cushions are severely damaged, or if the sofa has complex construction, consulting an upholsterer can ensure a proper and lasting repair.

Upholsterers have the expertise and tools to assess the underlying cause of the sagging and recommend the most appropriate solution. They can replace cushion cores, repair or replace damaged springs, and add new layers of padding or support as needed. Professional upholstery services can extend the life of a sofa and restore its comfort and appearance.