custom window treatments
https://aged-wiki.win/index.php/How_to_Choose_Custom_Window_Treatments_for_Your_Home
For our living room, we went with custom window treatments—floor-to-ceiling linen drapes with a subtle blackout lining. They soften the sunlight without darkening the room, and the exact length makes the ceilings look higher. My neighbor had hers tailored with a Roman shade underneath for layered privacy, which also looks great.