Contact the designer on her website. I doubt you will find out but worth a shot.

That said, you love the fabric in the context of the ENTIRE room, which is quite traditional. It also could be a more than several years old photo...........and even a now discontinued fabric.

Strong plaid and checks, anything with a strong horizontal line in the fabric, must be executed to perfection....... You are looking at a totally custom room, and love the result on a WHOLE. All the parts. : )

Not a pro, but wholeheartedly trust JAN MOYER's advice about the whole room love. Did a little sleuthing and found these for you. Good luck and Happy Houzzing! :)

Window coverings came from Designer Effects in Little Rock, AR

http://www.designereffects.net/

Great article and photos about the house. Scroll to the bottom of this article for the Interior Designer & her resources for this particular project: https://athomearkansas.com/article/the-art-of-home/

Google silk tafetta plaid fabric there might not be the exact one but there are many really nice ones.

@Jan Moyer, I find it interesting that you said to contact the designer but "I Doubt you will find out". Is it typical that designers don't share colors, materials etc? Im curious, i contacted the designer of a model home twice about a piece of furniture in the home. No response. I did eventually find it, but had she answered, she probably would have gotten the job when it comes time to do my own home.

interesting

Your picture posted, is an illustration of my first post text. It isn't just the THAT fabric, no matter you may love a plaid in a green and cream bedroom.

You love the curtains and the way they boldly tone in to the art, the rug on the floor. even the hearth surround. That's a custom room for a client. Designers differ. Some magnanimously share a source, a paint color. Most do not. If they don't answer, they may already know that item, or fabric is now discontinued . .......or they designed something ( table, console whatever ) custom for a client. Think too, how would you like to be paying for custom design, and have it all divulged to someone up the street? You'd be TICKED.

In your room? I'd begin with a rug. I'd remove some brown furniture. I'd look for bedding to complement that rug. You're in love with the FRESH and vibrant color in the other room. The cheer. The whole.........not the curtain fabric. If the same exact curtain panel was shown draped over a stair rail, awaiting install? You'd not look twice. Trust me on that .

Well over a decade ago, I kept this in an inspo file - always thinking I'd love to stay in that room ( Alexandra Branca , hotel can't remember )........and find a client who'd let me have at her room in a similar way : ) Few want bed hangings of any variety, or even a four poster lol. But the cozy/ quiet luxury always felt so dreamy. Still does.

Same thing here.........kept it for AGES...!!The point with any inspiration visual, is to understand the elements inspiring you. You don't need the exact copy. Ever.

Color , the hues and shades of any color, always suggest a story and context. You may have to guess at the climate out the window in this one, but it probably isn't Siberia.

If YOU want a bolder more colorful bedroom? You can have it. There are limitless routes to that room.......: ) But more than curtains will need to change.........to get it. Consider getting some pro help of your own to help you achieve that.

To Jan's point regarding custom work--I once worked for Client A and redesigned the entire living, dining and sun rooms. All custom window treatments, area rugs, built-in cabinetry and new furniture and accessories. I then got Client B who was a friend of Client A. One of Client B's first comments was "I hope you're not going to give me the same fabric/design you did at Client A's house." Of course my answer was no, I never repeat a fabric or design. Each client's project is unique, and that is why many designers do not share their sources.