The other night it was not hot or muggy and I opened up the 2 windows in my living room and slept on the couch as I often do. I just can't seem to sleep in my bed, it's uncomfortable. Anyway, the summer air was flowing in the 2 windows and was so pleasant and a bit cool. Hours of the wind blowing fresh, fresh air in and oh it was great! I enjoyed that fresh air as it hit my face and the rest of me. I haven't slept with the fresh air flowing in for years. It was really an experience to remember. It just was so very nice. It made my sleeping that night really good, too. 