Open windows and doors can improve sleep quality

I always prefer to sleep with a window open, I hate stuffy rooms.

Amazing discovery! As if you did not know about it.

Next time discovery: quiet environment improves your sleep quality.

Well, you'd think that people wouldn't need to be told this, but we have neighbours who never open most of their windows, the shutters permanently closed.

There is a significant difference between a city and countryside environment and air quality. Do people have trees nearby or concrete towers?

The study seems to have ignored the quantity of light in the absence or presence of background sound and sleep quality. I know that those are critical factors for many people. Others can sleep through anything.

Yeah, well, not when it's zero degrees outside... unless of course you're using one of those old kerosene heaters. I would have thought everything else stated in the article was a given.

Not when outside is noisy and when cars pass by with the volume all the way up and people keep yapping loudly outside.