I'm a very light sleeper. I cannot sleep if the room I am in is bright. Face-masks don't work for me because they give me allergies, prevent me from sleeping well, or don't match the geometry of my face.
I signed a 1-year lease in an apartment that has very bad general insulation (bad sound insulation, bad air insulation, bad insulation from vibrations from neighbors appliances, bad light insulation, bad heat insulation...), and that includes one of the worse window designs I've ever seen. They are not air-tight, not heat-tight and not light-tight at all..
This has caused me a lot of grief for various reasons:
Since they are not airtight, during fire season (this is in California), we had to seal the windows shut with tarp because smoke was getting inside the apartment (costly, time-taking, difficult, not easy to do/undo);
For the same reason, I left one of the sides tarped up because our downstairs neighbors are heavy smokers and the smoke would come up and wake me up at night;
Neighbors going outside their houses to place calls or listen to music can be heard as clearly as if they were in the room, same with street noises, construction areas, etc;
And most importantly, sunlight wakes me up every day at 5:30 or 6AM.
What makes it extremely difficult to shutter these is:
The overhanging fixture (totally useless and extremely annoying), which reduces the options to screw curtain rods above the window, and leave out very little space between the wall and said fixture - I don't think I would mess with unscrewing them as they are fragile and would take up a lot of room;
The levers to angle the window's panes which are protruding and prevent placing a flat plank of wood or other material against it without cutting a notch for them;
The whole wall area around the window seems to be made of metal - nothing can be nailed or screwed in near the windows;
The frequent winds that blow rather hard and would often push away anything flat placed against the windows;
The absence of metal around the windows, preventing to use magnetic solutions (everything is aluminium);
The width of the window casing (about 8ft), preventing the use of one single panel to go over it;
The sunlight hits the window very powerfully and any hole of gap in the shutter casts a lot of brightness into the room;
The solution has to be easy to put on and off in the morning/evening.
I tried to build shutters twice already. The first model was just a very large piece of folded cardboard placed into the wall frame against the windows, resting on the window sill. It was an OK solution, but I had these huge pieces of cardboard in the room, always sliding and falling down, and the seal wasn't great, especially on top, I had to tape it to the wall to prevent it from always gaping and falling down.
My current solution involves three panels, 2 are foam boards that I painted black, and which stay on thanks to magnets that I glued around the window frame and on the boards, and a middle panel made of light-sealing fabric and a wooden rod, also held in place with magnets at the top.
I am also not satisfied with this solution, since the sides of the light-blocking fabric are not pressed against the window frame and light leaks in, and there are gaps caused by the gap between the magnets and the foam boards, which on top of it are curving with the heat, thus letting in a lot of light.
I am really desperate to get good sleep in this apartment whatever the time of the day or the position of the sun is, and I am slowly becoming insane thinking about the poor (cheap?) decisions of the people who built this building, the absence of countrywide standards, and why I ended up accepting to live here so naively.