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