Where to find very long 300cm drop curtains for large windows

[ToysRus56]

Help! Just moved, big beautiful windows - need v long curtains 300cm drop, cant find any anywhere! Any tips? Not sleeping!

IKEA have that length.

Dunelm's bespoke service. Most fabric shops offer a curtain making service if you don't care for Dunelm's fabric range.

Ikea definitely do. Also I think H&M and Zara might too

Thanks guys! Should have said - looking for thick curtains for a bedroom, I just ordered the ones from h&m with the hope of putting a black out lining behind them but the seamstress told me it would look dreadful.....all the others are sheer from what I can see?

Wayfair do them. This is just an example, comes in various drops including 295 and 325. But they have others.
https://www.wayfair.co.uk/home-decor/pdp/lilijan-home-curtain-extra-long-extra-wide-shiny-velvet-curtain-panel-customized-clij1012.html?piid=82358311%2C74722878

More.
https://www.wayfair.co.uk/home-decor/pdp/lilijan-home-curtain-pinch-pleated-room-darkening-extra-long-extra-wide-decorative-curtain-single-panel-clij1172.html?piid=108471670%2C108471718

I’ve got some for wide French doors from M&S they’re velvet

We have high ceilings so have blackout blinds in the bedrooms as well as curtains then it doesn't matter if the curtains are thinner.

I've used 24/7 blinds and 24/7 curtains for bespoke and have no issues with them 4 years on.

Jysk?

Terry's fabrics do 90x108 which is 300cm drop

https://www.terrysfabrics.co.uk/collections/curtains-90-x-108-inches?page=1

La Redoute goes to 350cm

La Redoute

Anthropologie

Get them custom made from John Lewis or similar. Any size you want and better quality.

Find fabric you like and get the seamstress to make curtains up to fit the window with blackout lining (and interlining, make it very cozy and looks lush. Even very cheap fabric looks good when you do this - I have a bay window with curtains made using cheap ikea cotton fabric but they are interlined and have pinch pleats and look great.