Cushion Inserts and Fillers Explained.

A 14 × 20 inch (35 × 50 cm) insert suits a 12 × 18 inch (30 × 45 cm) lumbar cover in most cases. The same one-size-up guideline applies: a little extra filling fills the long ends, which are the first to look empty on a rectangular cushion. Ready-made lumbar inserts are sometimes sold at 12 × 20 or 13 × 21 inches; either works if you push the filling well into the corners. Lumbar cushions often sit against the back of a sofa or headboard, so a slightly firmer insert holds the shape better. See our cushion arrangement guide for where lumbars sit best.

Microfibre (polyester fibre) is the most practical filling for most Indian homes, because it resists moisture, dries quickly and is easy to wash. Feather and down give the softest, most relaxed look, but they can absorb humidity, smell musty in the monsoon and poke through thin covers. Foam holds a crisp shape and suits bench or seat cushions, but feels stiff on a sofa and can trap heat. Loose cotton filling is traditional and breathable, but it clumps and hardens over time and needs regular re-fluffing or re-carding. In coastal cities like Mumbai or Chennai, microfibre is the low-maintenance choice.

Cushions go flat because the filling compresses and clumps with daily weight, heat and humidity. To fluff one, hold it by two opposite sides and push the edges towards the centre a few times, then turn and repeat on the other sides. Give it a couple of firm pats to spread the filling into the corners. Doing this each evening takes a minute and keeps the sofa looking tidy. Sun the inserts for an hour now and then in the dry months, which helps them recover loft. If a cushion stays flat even after fluffing, the insert is too small or has reached the end of its life.

The karate chop is a styling trick where you press the side of your hand into the top centre of a fluffed cushion to make a V-shaped dent. It gives a relaxed, hotel-style look, and it works best on soft, well-filled inserts such as feather or plump microfibre. It does not suit firm foam inserts or lumbar cushions, which are meant to look straight. Some people find it too formal or staged for a lived-in family sofa. Use it if you like the look, but a simply fluffed cushion placed upright looks just as good in a modern Indian living room.

Replace cushion inserts roughly every two to three years with daily use, or sooner if they stay flat after fluffing. Signs it is time include lumps you cannot shake out, a thin feel at the edges, a musty smell after the monsoon, or feathers working through the fabric. Cushions on a daily sofa wear out faster than those on a bed or occasional chair. Replacing only the inserts is an inexpensive way to refresh a room, since the covers can be kept or changed separately. Buying inserts one size up from the start also helps them look full for longer.

Most microfibre inserts can be washed, but always check the care label first. Wash them on a gentle cycle in cool water with mild detergent, ideally two at a time to balance the drum. Rinse well and spin on a low setting. Dry them fully in the shade with good airflow, turning and fluffing them every few hours, because damp filling can smell or grow mould. Avoid washing inserts during the peak monsoon when they will not dry properly. Feather inserts usually need professional cleaning, and foam should only be spot-cleaned. For the covers themselves, see how to wash cushion covers.

Cushion covers are often sold without fillers so you can change the look of a room without buying new inserts each time. Most homes already have inserts, and swapping covers seasonally or for festivals is cheaper, easier to store and lighter to ship. It also lets you choose the filling and firmness you prefer. At SOISU, covers are sold without filler, and a microfibre insert can be added if you need one. Our covers come in 45 × 45 cm square and 30 × 45 cm lumbar sizes, so you can match your existing inserts. Browse the cushion covers collection.

Choose medium-firm inserts for sofas and softer inserts for beds. On a sofa, cushions support your back, so a medium-firm insert that springs back after use looks better and lasts longer. Very soft inserts slump and look untidy within a day. On a bed, cushions are mostly decorative or for reading, so a softer, fuller insert gives a relaxed, layered look. For lumbar cushions used as back support on dining chairs or diwans, go firmer. If you are unsure, a well-filled microfibre insert one size up from the cover is a safe middle ground for most Indian homes.