Have a look at Tectake striped roller blinds. They adjust so you can either see out through them or close completely at night.
Sheep do attract flies, but when they get move on the flies will go with them. The dawn chorus is one of the wonders of the countryside, but if you’re close to a rookery I’m afraid you will have noisy neighbours. We have one near us and their antics are fascinating. Summer in the countryside is a noisy time. Cows being separated from their calves, combines running late into the night, sugar beet lorries on peace work racing through narrow lanes to the beet factory, lorries and chain saws taking out pines in the nearby plantation..... And it’ll soon be time for the shooting season, and the foxes mating..... The countryside is a food factory and a busy place, but it changes with the seasons. It’s worth giving it time.