I have curtains, with extra thermal black out liners! Windows are double glazed UPVC and the roof, although flat, has excellent insulation and an extra retrofit insulation hat on top.

Can't fit blinds due to how the windows are sat. They're not like a normal Velux in a pitched roof set-up. Windows stretch the full 6m of the back of the house too. It's basically a greenhouse, this room.

Middle 3 open, end two don't. Top-hinged, outward opening. When we're in, they're open and the curtains stay closed. This really does help through the worst of summer. We were out all afternoon yesterday so the windows stayed shut, curtains were closed against the sun. Still hot as balls.

Window handle type and position, and sill placement make it impossible to fit blinds unless I want to spend the quoted £570 for made to measure. Ones that sit on the glass itself will have their floor knackered by the sun in no time. This is what happened in the livingroom, we have some in-panel ones down there for dealing with the awkward way the sun shines right in your face at different times of day. Plus there's no point in forking out that much cash for the M2M kind when the window will need replacing within the next 5 years (should be the next 3 really, but I've also got some original 1970s skylights and a mid 90s aluminium unit at the front to replace first). So currently living with an interesting two pole curtain set-up.

One day they'll be replaced. But I have a severe lack of cash issue for the time being. There's also very narrow set of ways we can modify them too, due to needing to stay in keeping with the look of the area.

Anyway, I hope this terrible graphic explains somewhat. I'll add a photo of my view from bed in a reply too.