Velvet curtains do something few other fabrics manage. They soak up the light in a room and give it back slowly, so the colour reads deeper, the window looks deliberate and the whole wall feels softer. But velvet is a construction, not a single material, and the fibre in the pile decides how the curtains behave once they are actually hanging at your window. Cotton velvet and polyester velvet can look nearly identical on a sample card and completely different after two winters of sun, dust and central heating.
The fibre decides how the curtain falls
Cotton velvet is woven with a cotton pile. It feels dense and slightly matte, and it falls in deep, rounded folds with weight all the way down to the hem. On a tall Victorian window or a wide bay, that weight is what makes a curtain look properly made rather than improvised.
Polyester velvet, often sold as poly velvet or velour, is lighter and springier. It holds a crisp, almost pressed pleat and recovers its shape quickly, which is useful in a hallway or a spare room where curtains get pulled about. It can also carry a slight sheen under a lamp, where cotton keeps a duller, richer depth of colour.
One thing catches most people out: velvet has a nap. Cut two panels in different directions and they will read as two different shades in daylight, even from the same roll. Order all panels together, from the same dye batch, and cut them the same way up. In a strong sidelight, that matters more than whether the pile is cotton or polyester.
Weight has practical knock-on effects, too. Heavier cotton velvet needs a decent pole with substantial brackets, or a corded track rather than a flimsy one. Hang anything heavy on small fixings and you will hear about it.
Light blocking is about the lining, not the pile
Neither cotton nor polyester velvet blocks much light on its own. An unlined velvet curtain over a bright street will glow along the seams and let the shape of the window frame show through. What does the work is the lining: standard sateen lining, blackout lining, bonded blackout, and interlining, sometimes called bump, which adds weight, warmth and a little sound softening.
For a bedroom, blackout lining plus interlining is the combination that actually delivers a dark room. For a living room you will often be perfectly happy with a good standard lining and generous curtain width. Whatever your budget, put money into the lining before you put it into the fibre. A well-lined polyester velvet curtain performs better than an unlined cotton one.
Small details matter as much as the fabric. Ask for a return to the wall at each side so light does not leak around the edges, and make sure the panels overlap slightly where they meet in the middle. A window that is properly covered feels warmer, because you are not sitting in a draught.
Fading: where polyester has the edge
Polyester dyes generally stand up to ultraviolet light better than cotton ones. Cotton velvet in rich reds, teals and deep blues is often the first to show wear on a south-facing window, and it usually appears on the window side and along the leading edges where the sun catches the fabric as it hangs.
That does not rule cotton out. A north-facing room, a shaded street, or a window with a blind that stays down through the middle of the day will all treat cotton kindly. If your window takes sun from morning to evening, though, be honest about it. Two habits make a real difference: rotate the panels end for end each spring so any fading is spread evenly, and keep the lining in good order, because the lining absorbs most of the light before it reaches the pile.
Cleaning and everyday care
Both fibres dislike rough handling, but they are not equally forgiving in the wash.
- Dust first, and often. Vacuum with an upholstery brush attachment on low suction, working with the direction of the pile. Monthly is plenty in most homes.
- Steam rather than press. A hand steamer lifts flattened pile and drops out creases. Never press an iron directly onto velvet; you will crush the nap and leave a shiny patch.
- Rotate the panels. Swap left to right each season. It evens out fading and the wear that comes from being pulled open and closed.
- Cotton velvet is usually dry clean only. Water can shrink it and leave tide marks on darker colours. Check the care label before you do anything else.
- Polyester velvet is often washable. Many are fine on a cool, gentle cycle with a low spin, then hung damp to dry away from direct heat. Only do this if the label permits it.
- Tackle marks straight away. Blot, do not rub, and work from the outside of the mark inwards.
Damp is a bigger threat to curtains than dirt. Kitchens and bathrooms, or a bedroom where condensation collects on the glass overnight, will shorten the life of any velvet. Keep curtains clear of radiators if you can, and let the room air properly. If you rent, or you are buying for a commercial space, check whether the fabric needs to meet any fire-safety requirement before you order.
Cost, width and where the money goes
Polyester velvet generally costs less per metre, and it is far easier to find in wide widths and long drops. That means fewer joins, straighter hems and quicker delivery, which is why it dominates the ready-made market. Colour consistency between batches is usually reliable, so adding a panel later is rarely a problem.
Cotton velvet is a more expensive fabric to buy and to work with. It is often narrower, so a wide bay may need more metres and a join, and making up, alterations and dry cleaning all cost more. It earns that difference in rooms where the look of the drape is the whole point.
One sensible compromise: choose the cheaper fibre, buy the longest drop you can and pay for a proper interlined lining. Good proportions and good lining do more for a window than an expensive pile that stops short of the floor.
Which should you choose?
Match the fibre to the room rather than to the swatch.
- Sunny, south or west-facing window? Polyester velvet, or cotton with a generous lining and a plan to rotate the panels.
- Bedroom that needs to be dark? Either fibre, but budget for blackout lining and interlining.
- Period property where the drape matters most? Cotton velvet, hung from a proper pole or track.
- Kitchen, hallway or family room with pets and small hands? Polyester velvet, which takes wiping, washing and general abuse more gracefully.
- Rented flat or a quick refresh? Polyester velvet in a ready-made size, with the best lining you can afford.
Order a sample of each, hang both against the window for a few days and look at them at different times. Velvet changes hour by hour as the light moves. Whichever sample you still like on a grey Tuesday afternoon is the one to buy.
Photo: Max Vakhtbovych / Pexels
