We have large trapezoid clerestory windows but don't need to cover them since they're not in a bedroom. You'll likely need a custom blind fitted for the clerestory window.

https://www.blinds.com/blog/blinds-for-trapezoid-windows

I'm a huge window lover, however, windows generally lead to energy inefficiency in homes since they take the place of an insulated wall. I'd personally consider whether I actually needed or wanted the clerestory window there at all if it's going to be covered up with blinds all of the time. If I absolutely wanted the window and wanted it open during the day time, I'd splurge for automated electric custom window treatment.

Thank you so much for the link. I wish I knew more exactly what "splurge" means when it comes to this LOL. I will contact them and see if they can help me out. Thank you!!!

In case anyone else is curious: they just quoted me roughly $350 for the larger half and $200 for the smaller half. Cellular shades.

cellular shades that you will leave covering the trapezoid all the time because of having to deal with opening and closing them. Seems to me like you might as well delete the window and save yourself the money. I don't think it does your exterior any favors having it either so win-win. I'd feel different if it was a window in a living area and not a bedroom.

ugh. I did not even think of the work involved in opening/closing. blah.

Do yourself a favor and ditch the trapezoid window. You’ll eliminate the window covering headaches, you’ll save money, and the exterior design will look better and cleaner.

Did you make a decision about the windows yet? We have trapezoid windows in our sleeping loft and came up with 2 solutions: one to darken the sleeping area, the other to darken the windows. We have a canopy bed, so we hung dark curtains (on three sides) which we close at night. (Cosy, feels like we’re in an old fashioned train sleeping compartment! ) Since the trapezoid windows start at 6’ from the floor, we needed an easy way to cover one of the windows, so we hung a ‘sail’ which attaches to a hook on the wall when the sail is closed. In the other window, we hung a stained glass picture which has a lot of dark blue in it.