Cushions for a Sofa Bed: What to Sit On and What to Sleep On

A sofa bed needs three different soft furnishings doing three different jobs. Seat cushions are the fixed or loose pads that form the seat and back, scatter cushions are the decorative squares, usually 40 cm to 50 cm, that sit on top, and sleeping pillows are the deeper, softer pillows a guest actually puts their head on. Scatter cushions are too shallow and too firm to sleep on, so a sofa bed still needs proper pillows kept with the bedding.

Key Takeaways

• A cushion supports you sitting up, a pillow supports your head lying down. In UK usage that is the whole distinction, and it is why the two are not interchangeable.

• Scatter cushions are typically 8 cm to 12 cm deep and firmly filled, which is roughly half the loft a sleeping pillow needs.

• Seat cushion fill sets how the sofa feels day to day: foam holds shape, feather wrapped foam sinks and needs plumping, hollowfibre sits between the two.

• Three to five scatter cushions suits most two and three seater sofa beds. More than that and they have to be moved every single night.

• Everything has to go somewhere when the bed opens, which is the practical constraint that should drive how many cushions you buy.

Seat Cushions, Scatter Cushions and Sleeping Pillows: Three Different Jobs

Three items, three jobs. Every incumbent guide skips this distinction and jumps straight to the generic cushion-vs-pillow question, which is why searches for sofa bed cushions currently go unanswered.

The point of the three-way frame: don't try to make one item do all three jobs. Scatter cushions are the wrong shape and firmness for sleeping; sleeping pillows are the wrong shape and fabric for sitting; seat cushions can't be moved around the way scatter cushions can. Each item is engineered for its own job.

What Sofa Bed Seat Cushions Are Filled With

Seat cushion fill is the material choice most owners notice within the first year. Different fills feel different on day one, and they age differently over daily use. Three fill families cover most sofa bed seat cushions on the UK market.

Foam Cushions

Foam seat cushions (typically polyurethane, sometimes with memory foam layers) hold their shape reliably and require the least daily maintenance. Higher-density foam lasts longer; layered constructions (support foam + comfort foam + fibre wrap) feel plusher without giving up shape retention. Foam is the go-to fill for sofa beds where the cushions get sat on daily and moved regularly for bed deployment.

Feather and Down Wrapped Foam

Feather-and-down wrapped foam has a foam core surrounded by a feather-fill outer chamber. The feather layer gives a soft, sink-in feel; the foam core gives underlying support. Trade-off: the feather layer needs plumping to maintain loft. Some households love the plumping ritual; others find it fussy on a sofa bed that also gets converted for guests regularly.

Hollowfibre and Polyester Fills

Hollowfibre and polyester fibre-fill seat cushions offer a plush, cloud-like feel similar to feather at a lower price. They plump quickly and are usually machine-washable-friendly on removable covers. Fibre fills flatten faster than foam under daily use, so they suit sofa beds where sit-mode use is moderate rather than heavy. Our Koala Sofa Bed uses 100% polyester fibre fill for the backrest cushions and seat inserts, designed to be reshaped by fluffing.

Seat Cushion Fill Comparison

The rule of thumb: foam-based fills reward low-maintenance households; feather and fibre fills reward households that don't mind fluffing but want a plusher feel.

Choosing Scatter Cushions for a Sofa Bed

Scatter cushions are where sofa bed styling meets nightly logistics. The right number and size makes the sofa look intentional without turning bedtime into a cushion-shuffling operation.

How Many Cushions a Sofa Bed Needs

Three to five scatter cushions suits most two-and-three-seater sofa beds in the UK. An odd number reads better visually than an even number; a lower count means less to move when the bed opens.

Practical count by sofa size:

• 1.5-Seater / Single: 1 to 2 cushions

• 2 to 2.5-Seater / Double: 2 to 3 cushions

• 3-Seater / King: 3 to 5 cushions

Above 5 cushions on a sofa bed becomes a nightly chore. Above 7 and the cushions have to live somewhere else during the day too.

UK Cushion Sizes and Which Goes Where

Standard UK scatter cushion sizes and their typical use:

• 45 cm square: the UK default; works everywhere on a sofa bed

• 50 cm square: best at the arms of a larger sofa where they anchor the corners

• 30 × 50 cm rectangle (lumbar): designed for lower-back support while sitting; genuinely useful rather than decorative

• 55 cm square: oversized statement cushions; only work on 3-seater and larger sofa beds

Rule of thumb: pair a smaller cushion (45 cm) in the middle with larger cushions (50 cm) at the arms. Or use two matched pairs and a single lumbar rectangle. Always buy the cushion pad 5 cm larger than the cover so the pad fills the corners rather than looking limp.

Fabrics That Survive Being Moved Twice a Day

Sofa bed scatter cushions get handled far more than sofa cushions, because they move every time the bed opens and closes. That changes the fabric advice. Prioritise:

• Removable washable covers: essential on a sofa bed cushion. Cushions moved twice a day pick up marks fast

• Tightly woven fabric (polyester blends, linen-cotton mixes with a tight weave): survives handling without pilling

• Colours that hide handling marks: mid-tones, textured fabrics, and patterns hide everyday marks better than plain pale fabrics

Avoid on scatter cushions that will be moved daily: velvet (shows every finger-mark and pressure line), delicate silk or embroidered fabrics (wear at handled edges), and pale plain cottons (pick up finger-marks and hair oils).

Why a Scatter Cushion Does Not Work as a Sleeping Pillow

The specific mechanical reason: a sleeping pillow needs to fill the gap between the mattress and the head-and-neck without collapsing to a hard flat plane. That requires 15 to 20 cm of usable loft under moderate compression and a fill that recovers between nights. Scatter cushions are typically 8 to 12 cm deep and firmly filled to hold shape while sitting; under sleeping weight they compress to a hard flat surface within minutes.

The symptoms of using a scatter cushion as a pillow:

• Neck strain because the head sits too low relative to the mattress surface

• The fill flattens overnight and doesn't recover, so night two is harder than night one

• The cushion cover irritates: upholstery fabric is heavier than pillow cotton and can feel rough against the face

• The cushion loses its sofa-mode shape after being slept on, which shows in the styling the next day

Keep two proper sleeping pillows with the sofa bed bedding. Storing them takes minimal space (a folded pillow is 40 × 30 × 15 cm) and it solves the problem permanently.

Where to Put Cushions and Pillows When the Bed Is Open

The practical constraint that decides how many cushions a sofa bed can actually carry. Every cushion on the sofa has to go somewhere when the bed opens, and there are limited good places for them.

Storage options for cushions and pillows on a sofa bed:

• Integrated storage under the seat: some sofa bed designs include a compartment under the closed sofa for bedding storage. Check the product page for internal storage volume

• A matching ottoman: an ottoman that pairs with the sofa bed and doubles as a bedding-plus-cushion store keeps everything close to the sofa. Our Koala Sofa Bed Ottoman for cushions and spare bedding is designed for exactly this

• A cupboard within reach: wardrobe, hall cupboard, or blanket box in an adjacent room works if it's within a few steps

• A dedicated cushion basket: a large woven basket in the room, positioned so it doesn't block the opened bed's footprint

• The bed itself, once made up: cushions arranged as bolsters at the head or feet of the made-up bed can look intentional rather than piled

Options to avoid: cushions on the floor (they get kicked, pick up hair and dust), cushions stacked precariously on furniture (they fall), cushions crammed behind the sofa (they crush and pick up dust). If your sofa bed opens frequently, plan storage before you buy cushions, not after.

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Find the Right Sofa Bed for Your Cushions With Koala

The cushions you sit on come with our Koala Sofa Bed. Its backrest cushions and seat inserts are filled with 100% polyester fibre, and thanks to our FlipBed™ design, the seat cushions stay on the sofa when the bed comes out. That means no shuffling cushions around at bedtime. You only need somewhere to put your scatter cushions and your guest's pillows, and our ottoman sorts that, with hidden storage under the lid and a top that flips over into a side table.

• • Browse bed settee and sofa bed options at Koala UK to find the right size for your room.

  • See how the Koala Sofa Bed goes from sofa to bed without moving the seat cushions.

  • Add a storage ottoman for cushions and spare bedding to keep everything tidy overnight.

Every Koala product comes with our 120-day trial, so you can try it at home before you decide.

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Frequently Asked Questions ( FAQs )

Can I use a cushion as a pillow on a sofa bed?

You can for one night, but a scatter cushion is too shallow and too firm to support the head and neck properly. Most scatter cushions are 8 cm to 12 cm deep against the 15 cm to 20 cm loft a sleeping pillow gives. Keep two proper pillows with the sofa bed bedding instead.

What is the difference between a cushion and a pillow?

A cushion supports the body while sitting and is usually square, firmly filled and covered in upholstery-weight fabric. A pillow supports the head while lying down and is usually rectangular, softer and covered in washable cotton. In the UK the words are not interchangeable, unlike in US usage.

How many cushions should a sofa bed have?

Three to five scatter cushions suits most two and three seater sofa beds. An odd number reads better visually, and a lower count means less to move when the bed is opened. Anything above five becomes a nightly chore on a sofa bed that is used regularly.

What size scatter cushions suit a sofa bed?

A 45 cm square is the standard UK scatter cushion size and works on most sofa beds. Pair it with a 50 cm square at the arms for depth, or a 30 cm by 50 cm rectangle for lumbar support while sitting. Buy the pad 5 cm larger than the cover so it fills the corners.

Does Koala sell cushions?

We don't sell cushions separately, as our Koala Sofa Bed already comes with its own backrest cushions and seat inserts, filled with 100% polyester fibre. With our FlipBed™ design, the seat cushions stay on the sofa when the bed opens, so there's nothing to move out of the way at bedtime.