Two inch wood blinds and side panels made with belgian linen.

I would ignore the curved transom and span your window covering for the entire extended wall section.

not sure what you mean? we are looking to block the light that comes in from the transom above, not sure I have space for a curtain rod?

Why do builders do this ? The only thing you can do is have a roman shade that will fit up as high to the top of the window as you can get . It looks like it might work. See what your son likes for a color scheme but maybe in the blues with greens and some orange accents . Just make sure the linings of the blinds are white so it looks better from the street.

hi. I have seen it done in a house where they took two rods the length of the angle and hung one up on each side where the wall and ceiling meet. Then the curtains hanging meet in the middle and when closed have an inverted V on top. know what i mean? The fabrics could be wide strips of color and really play up the window! Cuatom made drapes obviously as they arent a reqtangle shape but if you found ready mades and added on the needed half triangle to each that would work too.

Hi Mitsy, it might be worth to pay a visit to your local window blind / drapery store and talk to them about doing a custom fit for your window, as you can see it is possible.

Do this, Install the hidden track from the top corner, one down to right one down to left. Make 2 normal triple pleat curtains. Fix them on top corner with the last ring hooks (from curtains). Cut the bottom same level or let them touch the floor.
The second method, make a curve rod track follow the arce window border. Hope this helps.

That window type is called an "eyebrow." You can get blinds or pleated shades custom fit to it. I like the ones that mount in the bottom of the window (the flat part) and pull upward to fill the eyebrow.

I personally like the idea of rods hung on the slant following the ceiling line. Then make/buy curtains and use hardware for a pull back for each side. The length of the curtains on either side would frame the window nicely and if they were custom made would hang straight when closed. If you are pinched for $$ and need to buy ready made, then they wouldn't necessarily show that the middle was shorter when you pulled them back and at night, no one else would be the wiser when you shut them for a darker room. Good luck!!!

Hello mitsy, Marie here. I am a registered Hunter Douglas dealer, and an interior designer. You need a Duette black out blind - outside mount. Or you can spend a bit more and get inside mount Architella's.
If you want durability and a bit of a funkier look, go with the Designer screens, but that won't keep the light out. The best bet would be Duette Architellas, contact your local Hunter Douglas rep, have them estimate the duette for you. Silhouettes are also a possibility, they are more expensive, and don't keep out as much light. Once you cover the eyebrow portion, you will not be able to operate that portion. Good Luck some photos attachéd for inspiration.

HI Mitsy, I have the same situation and a limited budget. Blinds were too much $$$ so I went with a professionally installed black out window film for a quarter of the cost.

Another window treatment I haven't seen mentioned here would be to have drapery panels made that attach to fixed knobs above the eyebrow. You would swag them back during the day and then let them fall closed at night. The link is to a photo of a treatment in this style that is purely decorative because the fabric is sheer and the treatment doesn't cover the whole window -- but hopefully you get the idea that with room darkening lining and bringing the treatment all the way across the top would give you an effective treatment that blocks out the entire window when closed. The higher you place your holdbacks, the more window you'll expose when open. And yes -- you'll need to custom make them.

my son is almost 10, I'd like something geared towards his age and as he grows, he likes blues, reds, greys. I'd like something funky to go with his dwell stripped bedding and iron bed from RH

you could do a custom valance that fits inside the arch over a roman blind. You could use a great denim with black out lining. Although, as he gets older the darker the room the later he'll sleep Ha!

You can find my contact info on my website...The sail idea is one of many!

I must say that I think Lisa's sail idea was brilliant.

Golly I guess I would rather see the stars unless there is a tall office building next door...if it is light from a nearby lampost I would rather come up with a short awning on the outside of the house that could also help defuse the sun from bleaching out the carpet and bedclothes.

Two-inch plantation shutters along with belgian linen curtains hung to look like this Houzz photo:

Using ceiling-mounted hooks may be the answer, IF you could find a hook that swivels and pivots so they hang straight down rather than project out. Then take the stripe theme of the bedding and use that to your benefit by making tab-top curtains/drapes with striped fabric. In this case, the leading edge (inside edge) would be longer than the outside edges. Use blackout lining on the drapes. When you want to open them, just tuck them behind some hold-backs mounted on both sides of the window itself. You could possibly make these yourself, but I would suggest looking into custom-made draperies. Best of luck in your search for a solution.

So, what have you done with the window? Any pictures?

actually I have yet to find a solution for my son's room. We have another room, our loft that has the same window and transom and faces the front of the house, so I am hoping to find a solution that works for both rooms as they are on the same floor. I'd like curtain rods or ideas of roman shades which can be hung on the outside of the trim.

Does anyone have ideas or photos of roman shades that are hung on the outside of the window?